Distribute assets/wealth not equal prportion to the male and female child

[Beyond Tradition]

Dear Brother Joseph
Salamun Alaikum ,

Does Quran make mandatory unequal proportional distribution of the assets/wealth of a father among his children ? is really sanctioned doubled to male child than a female child ? If it is already specified then why the need to make a will when death approach for a man ?
Actually I need very clear idea of Quranic laws to distribute the assets/wealth among to the children of a man/father . If unequal proportion is allowed to make a will for a father when death approach then Quran describe any logic to face the challenge of the concept of judgement between man and women of the world judgement /rulled ? . I will be glad if you find some time for me and I will be grateful to you forever .