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.
[[-117, -10, 5, -189, -181], [-100, -96, 74], [-100, -129], [-158, -168, -67, 22, -146, -74, -2], [-107, -198, 67, 67, -30]]