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.
[[5, -173, -51, 56, 31, -94], [-140, 27, -21, -163, -4, -146, 40], [67, -177, -122]]