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.
[[-129, -84, -121, -154, -37, -143, 40], [98, 57, -54, -88, -147, 77, 50], [-61, -28, -86, -42], [-134, -35]]