Finding the Fourth Proportional to 81,441.10, 122,128.84 and 34,025.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,441.10 : 122,128.84 = 34,025.12 : x
2. Step 2: Convert to fraction form
   81,441.10/122,128.84 = 34,025.12/x
3. Step 3: Cross multiply
   81,441.10x = 122,128.84 × 34,025.12
4. Step 4: Simplify right side
   81,441.10x = 4,155,448,436.46
5. Step 5: Solve for x
   x = 4,155,448,436.46/81,441.10
6. Step 6: Final answer
   x = 51,023.97