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.
[[53, -136, -97, 3], [74, -64, -155, -75], [-18, 0, 18, 11, -183, 68], [24, -106, -76, -7], [-21, -185]]