In this task, you are given a list. This list contains many lists of integers. The list is several items written within a []. Your task is to find the maximum number among the members of each inner list. The output should be a list comprised of the maximums with the same order as the internal lists.
[[-118, -5, -53], [-115, 50, -150, 40, -83, -189, 50], [-200, -108, 38, -7, -21, -143], [-146, -22, -123, 38, -197], [-22, 89], [-63, -68, -52, -124, -68]]