Finding the Fourth Proportional to 16,204.20, 22,360.98 and 9,131.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,204.20 : 22,360.98 = 9,131.04 : x
2. Step 2: Convert to fraction form
   16,204.20/22,360.98 = 9,131.04/x
3. Step 3: Cross multiply
   16,204.20x = 22,360.98 × 9,131.04
4. Step 4: Simplify right side
   16,204.20x = 204,179,002.82
5. Step 5: Solve for x
   x = 204,179,002.82/16,204.20
6. Step 6: Final answer
   x = 12,600.38