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.
[[64, -60, -85, 12, -158, 23], [-122, -55], [-63, 62, -139, 3, -134, -54], [-83, -152, -132, 28, -97, -40]]