Does the grandson inherit from the estate of his deceased grandfather, which the grandfather inherited from his father, given the existence of three daughters and a wife?

The son of the son inherits from his grandfather in the absence of a son higher than him. If the heirs are limited to the wife, the three daughters, and the son of the son, then the wife receives one-eighth due to the existence of a inheriting offspring, and the daughters receive two-thirds, and the remainder goes to the son of the son by ta'sib (residuary heirship). The inheritance is divided into seventy-two shares: the wife receives nine shares, the daughters receive forty-eight shares (sixteen for each), and the son of the son receives fifteen shares.