Finding the Fourth Proportional to 113,018.88, 169,417.92 and 53,838.72

Step by Step Solution

1. Step 1: Write the proportion equation
   113,018.88 : 169,417.92 = 53,838.72 : x
2. Step 2: Convert to fraction form
   113,018.88/169,417.92 = 53,838.72/x
3. Step 3: Cross multiply
   113,018.88x = 169,417.92 × 53,838.72
4. Step 4: Simplify right side
   113,018.88x = 9,121,243,957.86
5. Step 5: Solve for x
   x = 9,121,243,957.86/113,018.88
6. Step 6: Final answer
   x = 80,705.49