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.
[[-174, -107, 79, 85, 46, -2], [-83, -152, -8, -53, 64, 91, -129], [-20, 12, -147, 93]]