Finding the Fourth Proportional to 12,354.27, 18,518.12 and 5,337.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,354.27 : 18,518.12 = 5,337.61 : x
2. Step 2: Convert to fraction form
   12,354.27/18,518.12 = 5,337.61/x
3. Step 3: Cross multiply
   12,354.27x = 18,518.12 × 5,337.61
4. Step 4: Simplify right side
   12,354.27x = 98,842,475.57
5. Step 5: Solve for x
   x = 98,842,475.57/12,354.27
6. Step 6: Final answer
   x = 8,000.67