Finding the Fourth Proportional to 22,203.83, 30,640.37 and 12,132.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,203.83 : 30,640.37 = 12,132.61 : x
2. Step 2: Convert to fraction form
   22,203.83/30,640.37 = 12,132.61/x
3. Step 3: Cross multiply
   22,203.83x = 30,640.37 × 12,132.61
4. Step 4: Simplify right side
   22,203.83x = 371,747,522.20
5. Step 5: Solve for x
   x = 371,747,522.20/22,203.83
6. Step 6: Final answer
   x = 16,742.50