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.
[[77, -17, -47], [46, -24], [-18, 65, -146, -51, 40, -143, 49]]