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.
[[49, -72, -46, 38, -96, 21], [21, -105], [47, -69, 13, -126], [-199, 49, -120, -36, 82, -141, -140], [-55, -74, 10, -34], [-129, -126, -197, -142, 21]]