In addition to the proceedings authorized by section two of this article, the guardian of any minor, or the committee of any insane person or convict, if he deem that the interests of his ward or insane person or convict will be promoted by a sale, lease or mortgage of, or trust deed upon, his estate, or of any estate in which he with others, infants or adults, is interested, whether the estate of the minor, or insane person or convict, or of any of the other persons interested, be absolute or limited, and whether there be or be not limited thereon any other estate, vested or contingent, may apply by petition, in a summary way, to the circuit court, or to the judge thereof in vacation, or to any court of concurrent jurisdiction with the circuit court, or to the judge thereof in vacation, or to any juvenile court, or to the judge thereof in vacation, of the county in which the estate proposed to be sold, leased, or encumbered, or some part thereof may be, describing all the estate, real and personal, belonging to the minor, or insane person or convict and setting forth plainly all the facts calculated to show the propriety of the sale, lease, mortgage, or deed of trust. The petition shall be verified by the oath of the plaintiff, and all persons interested shall be made defendants, and ten days' notice shall be given to such defendants before such petition can be heard: Provided, That any notice or service required by this section to be made upon any infant under fourteen years of age shall be made by delivering a copy of such notice and petition to his guardian resident in this state; or, if there be no such guardian, then either to his father or mother if they be found. If there is no such guardian and if the father or mother cannot be found, service of such notice and petition shall be made upon a guardian ad litem appointed in the manner provided by law.