Finding the Fourth Proportional to 250,333.12, 375,522.76 and 81,854.31

Step by Step Solution

1. Step 1: Write the proportion equation
   250,333.12 : 375,522.76 = 81,854.31 : x
2. Step 2: Convert to fraction form
   250,333.12/375,522.76 = 81,854.31/x
3. Step 3: Cross multiply
   250,333.12x = 375,522.76 × 81,854.31
4. Step 4: Simplify right side
   250,333.12x = 30,738,156,409.10
5. Step 5: Solve for x
   x = 30,738,156,409.10/250,333.12
6. Step 6: Final answer
   x = 122,789.01