What is the share of each heir from the aforementioned inheritance?

If the heirs are limited to the wife, mother, son, and daughter, then the wife receives one-eighth (1/8) due to the presence of a lineal descendant, and the mother receives one-sixth (1/6) also due to the presence of a lineal descendant. The remainder goes to the son and daughter by way of ta’sib (residuary inheritance), with the male receiving the share of two females. The inheritance is divided into 72 shares. As for the rest of the relatives, they do not inherit due to the presence of the son. It is recommended to consult the Sharia courts regarding inheritance matters, as potential complexities may arise.