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.
[[-161, -60, -171, -26, -39], [-31, -68, 0, -4], [-171, 75]]