Finding the Fourth Proportional to 16,223.98, 22,390.41 and 9,151.87

Step by Step Solution

1. Step 1: Write the proportion equation
   16,223.98 : 22,390.41 = 9,151.87 : x
2. Step 2: Convert to fraction form
   16,223.98/22,390.41 = 9,151.87/x
3. Step 3: Cross multiply
   16,223.98x = 22,390.41 × 9,151.87
4. Step 4: Simplify right side
   16,223.98x = 204,914,121.57
5. Step 5: Solve for x
   x = 204,914,121.57/16,223.98
6. Step 6: Final answer
   x = 12,630.32