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.
[[77, -181, 47, -86], [-86, -73], [34, -83, -81, -142, -129, 12], [-40, -191, 13], [10, -108, 76], [54, -80, -173, 19, -83]]