Finding the Fourth Proportional to 8,314.79, 12,463.98 and 3,387.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,314.79 : 12,463.98 = 3,387.89 : x
2. Step 2: Convert to fraction form
   8,314.79/12,463.98 = 3,387.89/x
3. Step 3: Cross multiply
   8,314.79x = 12,463.98 × 3,387.89
4. Step 4: Simplify right side
   8,314.79x = 42,226,593.20
5. Step 5: Solve for x
   x = 42,226,593.20/8,314.79
6. Step 6: Final answer
   x = 5,078.49