How is the sum of 30,0 Saudi Riyals, left by a deceased person survived by three daughters, a wife, a father, a mother, and two brothers, with no sisters, to be divided among his heirs?

The father's share is one-sixth, the mother's one-sixth, the wife's one-eighth, and the daughters' two-thirds. The siblings receive nothing, as they are excluded by the father and daughters. The issue (of shares) is increased from 24 to 27, and the inheritance is divided into 81 shares: the father receives 12 shares, the mother 12 shares, the wife 9 shares, and each daughter 16 shares. It is advisable to refer inheritance matters to the Sharia courts for investigation.