Finding the Fourth Proportional to 16,111.65, 22,234.05 and 9,038.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,111.65 : 22,234.05 = 9,038.28 : x
2. Step 2: Convert to fraction form
   16,111.65/22,234.05 = 9,038.28/x
3. Step 3: Cross multiply
   16,111.65x = 22,234.05 × 9,038.28
4. Step 4: Simplify right side
   16,111.65x = 200,957,569.43
5. Step 5: Solve for x
   x = 200,957,569.43/16,111.65
6. Step 6: Final answer
   x = 12,472.81