Finding the Fourth Proportional to 16,229.34, 22,395.15 and 9,157.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,229.34 : 22,395.15 = 9,157.50 : x
2. Step 2: Convert to fraction form
   16,229.34/22,395.15 = 9,157.50/x
3. Step 3: Cross multiply
   16,229.34x = 22,395.15 × 9,157.50
4. Step 4: Simplify right side
   16,229.34x = 205,083,586.13
5. Step 5: Solve for x
   x = 205,083,586.13/16,229.34
6. Step 6: Final answer
   x = 12,636.59