After every settlement, when the best interests of the estate require it, on application of any interested person, the court shall ascertain the amount of money of the estate which has come to the hands of the personal representative from all sources and the amount of claims allowable against the estate, and may order the payment of the claims so allowable. If it appears that there is not sufficient assets to pay the whole of the debts and expenses of administration, the court may apportion, in accordance with the provisions of this law, among the creditors that percentage of their claims as appears will not adversely affect the rights of other creditors or the payment of administration expenses. The court may order that the personal representative pay the claims allowable against the estate according to the apportionment, reserving sufficient assets to pay expected claims and also reserving apportionments made on claims which remain undecided until decision is had thereon.