Finding the Fourth Proportional to 113,067.92, 156,020.46 and 67,120.40

Step by Step Solution

1. Step 1: Write the proportion equation
   113,067.92 : 156,020.46 = 67,120.40 : x
2. Step 2: Convert to fraction form
   113,067.92/156,020.46 = 67,120.40/x
3. Step 3: Cross multiply
   113,067.92x = 156,020.46 × 67,120.40
4. Step 4: Simplify right side
   113,067.92x = 10,472,155,683.38
5. Step 5: Solve for x
   x = 10,472,155,683.38/113,067.92
6. Step 6: Final answer
   x = 92,618.27