Compare the numbers digit by digit, starting from the ten-thousands place.

Ten-thousands digits: 4, 4, 4, 4. Numbers with the same ten-thousands digit are further compared at the thousands, hundreds, tens, and ones places.

From largest to smallest:
• 42516 (greatest)
• 42165
• 41526
• 41256 (smallest)

Final Answer: 42516, 42165, 41526, 41256