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.
[[-140, 50, -176, -28, -39], [-87, -173, 97, -172], [-147, -112, -93, -172, -32, 57, -114]]