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.
[[-91, -156, -60], [-177, -69, 24], [-121, -183, -87, -180, -157]]