Finding the Fourth Proportional to 12,150.08, 18,229.17 and 4,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.08 : 18,229.17 = 4,359.50 : x
2. Step 2: Convert to fraction form
   12,150.08/18,229.17 = 4,359.50/x
3. Step 3: Cross multiply
   12,150.08x = 18,229.17 × 4,359.50
4. Step 4: Simplify right side
   12,150.08x = 79,470,066.62
5. Step 5: Solve for x
   x = 79,470,066.62/12,150.08
6. Step 6: Final answer
   x = 6,540.70