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.
[[-4, 41, 76, -12, -44, 9], [-16, -129], [-124, 30, 84, -124, -136], [-30, 82, -199, 8], [-108, -91, -115, -38]]