Finding the Fourth Proportional to 231,061.46, 318,833.27 and 129,074.32

Step by Step Solution

1. Step 1: Write the proportion equation
   231,061.46 : 318,833.27 = 129,074.32 : x
2. Step 2: Convert to fraction form
   231,061.46/318,833.27 = 129,074.32/x
3. Step 3: Cross multiply
   231,061.46x = 318,833.27 × 129,074.32
4. Step 4: Simplify right side
   231,061.46x = 41,153,186,076.17
5. Step 5: Solve for x
   x = 41,153,186,076.17/231,061.46
6. Step 6: Final answer
   x = 178,104.93