At said hearing, the court or chancellor in vacation, as the case may be, shall hear the written protests and objections against the proposed consolidation of said districts, if any be filed prior to the date set for said hearing; and unless, prior to said date of hearing, a majority of the landowners of said districts proposed to be consolidated, owning half or more of the combined land of said districts, shall have filed their written protests or objections against said proposed consolidation, shall enter a final decree, which shall have the force and effect of a judgment, consolidating said districts into a single drainage district embracing the combined territory of all of said several districts. The consolidated drainage district so formed shall have all of the power and authority of a drainage district organized under the provisions of this chapter, and shall have full, complete, and exclusive jurisdiction over such combined territory and of the complete and integrated systems of drainage of the said districts so consolidated. Any person aggrieved by said decree may appeal to the supreme court within twenty days after the date thereof.