How is the estate of a house with an annual income of 100,0 riyals distributed among a mother, a son, and four daughters?

The mother receives one-sixth, based on the Almighty's saying: "And for his parents, each of them the sixth of what he left if he had a child." {An-Nisa:11}. The remainder is divided between the son and the four daughters by way of ta'sib (residuary heirship), with the male receiving the share of two females, based on the Almighty's saying: "Allah instructs you concerning your children: for the male, what is equal to the share of two females." {An-Nisa:11}. Thus, the amount is divided into 36 shares: the mother receives 6 shares, the son 10 shares, and each daughter 5 shares. The matter of inheritances should be referred to the Sharia courts for investigation and to ensure there are no other heirs, wills, debts, or rights that take precedence over the heirs' rights.