Finding the Fourth Proportional to 112,854.52, 155,733.24 and 65,105.02

Step by Step Solution

1. Step 1: Write the proportion equation
   112,854.52 : 155,733.24 = 65,105.02 : x
2. Step 2: Convert to fraction form
   112,854.52/155,733.24 = 65,105.02/x
3. Step 3: Cross multiply
   112,854.52x = 155,733.24 × 65,105.02
4. Step 4: Simplify right side
   112,854.52x = 10,139,015,704.86
5. Step 5: Solve for x
   x = 10,139,015,704.86/112,854.52
6. Step 6: Final answer
   x = 89,841.47