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.
[[-31, -89, -194, -2, 66, 57], [81, -26, 28, -146, -161], [54, 46, -98, -86, 62, -31, -136]]