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.
[[-45, 45, 63], [-163, 54], [-93, -148, 58, -31, -6, -66], [87, -31, -68], [77, -91, 87], [-126, 1, 31, -188, -192, -199], [3, 48, 37, -146, -144, -175], [-108, -131]]