Finding the Fourth Proportional to 66,085.98, 91,172.70 and 37,776.48

Step by Step Solution

1. Step 1: Write the proportion equation
   66,085.98 : 91,172.70 = 37,776.48 : x
2. Step 2: Convert to fraction form
   66,085.98/91,172.70 = 37,776.48/x
3. Step 3: Cross multiply
   66,085.98x = 91,172.70 × 37,776.48
4. Step 4: Simplify right side
   66,085.98x = 3,444,183,678.10
5. Step 5: Solve for x
   x = 3,444,183,678.10/66,085.98
6. Step 6: Final answer
   x = 52,116.71