Finding the Fourth Proportional to 61,128.38, 91,691.83 and 16,755.10

Step by Step Solution

1. Step 1: Write the proportion equation
   61,128.38 : 91,691.83 = 16,755.10 : x
2. Step 2: Convert to fraction form
   61,128.38/91,691.83 = 16,755.10/x
3. Step 3: Cross multiply
   61,128.38x = 91,691.83 × 16,755.10
4. Step 4: Simplify right side
   61,128.38x = 1,536,305,572.55
5. Step 5: Solve for x
   x = 1,536,305,572.55/61,128.38
6. Step 6: Final answer
   x = 25,132.44