How much is the share of each heir from an estate worth 300,0, if the heirs are: one son, two daughters, and a wife?

If a man dies and leaves behind only a wife, a son, and two daughters, then the wife receives one-eighth (1/8) due to the presence of a lineal descendant, based on the Almighty's saying: "But if you have a child, then for them [i.e., the wives] is one eighth of what you leave, after any bequest you [may have] made or debt." The remainder goes to the son and the two daughters by way of ta'sib (residuary inheritance), 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." The inheritance is divided into 32 shares: the wife receives 4 shares, the son receives 14 shares, and each daughter receives 7 shares. From an amount of 300,0, the wife would receive 37,500, the son 131,250, and each daughter 65,625.