Finding the Fourth Proportional to 314,057.76, 471,089.49 and 89,418.03

Step by Step Solution

1. Step 1: Write the proportion equation
   314,057.76 : 471,089.49 = 89,418.03 : x
2. Step 2: Convert to fraction form
   314,057.76/471,089.49 = 89,418.03/x
3. Step 3: Cross multiply
   314,057.76x = 471,089.49 × 89,418.03
4. Step 4: Simplify right side
   314,057.76x = 42,123,894,149.50
5. Step 5: Solve for x
   x = 42,123,894,149.50/314,057.76
6. Step 6: Final answer
   x = 134,127.86