Finding the Fourth Proportional to 16,222.71, 22,391.41 and 9,153.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,222.71 : 22,391.41 = 9,153.23 : x
2. Step 2: Convert to fraction form
   16,222.71/22,391.41 = 9,153.23/x
3. Step 3: Cross multiply
   16,222.71x = 22,391.41 × 9,153.23
4. Step 4: Simplify right side
   16,222.71x = 204,953,725.75
5. Step 5: Solve for x
   x = 204,953,725.75/16,222.71
6. Step 6: Final answer
   x = 12,633.75