Finding the Fourth Proportional to 22,192.18, 30,624.62 and 12,120.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,192.18 : 30,624.62 = 12,120.57 : x
2. Step 2: Convert to fraction form
   22,192.18/30,624.62 = 12,120.57/x
3. Step 3: Cross multiply
   22,192.18x = 30,624.62 × 12,120.57
4. Step 4: Simplify right side
   22,192.18x = 371,187,789.83
5. Step 5: Solve for x
   x = 371,187,789.83/22,192.18
6. Step 6: Final answer
   x = 16,726.06