Finding the Fourth Proportional to 88,505.71, 122,018.43 and 85,753.87

Step by Step Solution

1. Step 1: Write the proportion equation
   88,505.71 : 122,018.43 = 85,753.87 : x
2. Step 2: Convert to fraction form
   88,505.71/122,018.43 = 85,753.87/x
3. Step 3: Cross multiply
   88,505.71x = 122,018.43 × 85,753.87
4. Step 4: Simplify right side
   88,505.71x = 10,463,552,583.82
5. Step 5: Solve for x
   x = 10,463,552,583.82/88,505.71
6. Step 6: Final answer
   x = 118,224.60