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.
[[88, -177, -189], [39, 52, 91, -28, -61, 22, -121], [-76, 27, -100], [-152, -39, -183, -5, -188, -181]]