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.
[[65, 72, -140, -53, -102, -66, -171], [36, -50], [-166, 32, 12, -43], [-129, 2, -49], [-172, -124, 44, -100, -133], [89, -95, 52, 45, -102, -4]]