What is the prescribed method for resolving a will involving multiple conditional allocations?

Primary text

The method to be employed for resolving the distribution of the will is the inverted calculation (*al-mankus*). Begin with the last bequest. If the last bequest allocated one-third of what remained, add half of that amount to the bequest itself (representing the remaining two-thirds), resulting in a preliminary total. Then, account for the specific share allocated to the sister, which is added to this total. Next, consider the bequest for the mother's share and one-quarter of what remained, requiring the addition of one-third of that amount plus the mother's designated share to the running total. Finally, address the bequest for the uncle's share and one-sixth of what remained, which necessitates adding one-sixth of the final amount plus the uncle's designated share to arrive at the final divisible number.