Finding the Fourth Proportional to 113,222.52, 169,879.89 and 57,078.81

Step by Step Solution

1. Step 1: Write the proportion equation
   113,222.52 : 169,879.89 = 57,078.81 : x
2. Step 2: Convert to fraction form
   113,222.52/169,879.89 = 57,078.81/x
3. Step 3: Cross multiply
   113,222.52x = 169,879.89 × 57,078.81
4. Step 4: Simplify right side
   113,222.52x = 9,696,541,964.13
5. Step 5: Solve for x
   x = 9,696,541,964.13/113,222.52
6. Step 6: Final answer
   x = 85,641.46