Finding the Fourth Proportional to 22,210.91, 30,650.54 and 12,139.41

Step by Step Solution

1. Step 1: Write the proportion equation
   22,210.91 : 30,650.54 = 12,139.41 : x
2. Step 2: Convert to fraction form
   22,210.91/30,650.54 = 12,139.41/x
3. Step 3: Cross multiply
   22,210.91x = 30,650.54 × 12,139.41
4. Step 4: Simplify right side
   22,210.91x = 372,079,526.02
5. Step 5: Solve for x
   x = 372,079,526.02/22,210.91
6. Step 6: Final answer
   x = 16,752.11