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, -76, 58], [-20, -38], [-174, -126], [-140, 5, -46, 8, 84, -129, -3], [-104, -54, -169, -77, -14, -21], [-27, -170, 61, -123, -35, 18]]