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.
[[-51, -178, -162, 41], [53, -78, -181, -186, -64], [-58, -99, -2, 0], [-42, -175, 30]]