(1) Except as restricted or otherwise provided by the will or by an order in a formal proceeding and subject to the priorities stated in section 15-12-902, a personal representative, acting reasonably for the benefit of the interested persons, may properly:
(a) Exercise any of the powers enumerated in the "Colorado Fiduciaries' Powers Act" at the time of such exercise; and
(b) Satisfy written charitable pledges of the decedent irrespective of whether the pledges constituted binding obligations of the decedent or were properly presented as claims, if in the judgment of the personal representative the decedent would have wanted the pledges completed under the circumstances.