Finding the Fourth Proportional to 314,387.40, 471,514.12 and 89,687.50

Step by Step Solution

1. Step 1: Write the proportion equation
   314,387.40 : 471,514.12 = 89,687.50 : x
2. Step 2: Convert to fraction form
   314,387.40/471,514.12 = 89,687.50/x
3. Step 3: Cross multiply
   314,387.40x = 471,514.12 × 89,687.50
4. Step 4: Simplify right side
   314,387.40x = 42,288,924,517.38
5. Step 5: Solve for x
   x = 42,288,924,517.38/314,387.40
6. Step 6: Final answer
   x = 134,512.15