Finding the Fourth Proportional to 16,231.74, 22,398.57 and 9,158.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,231.74 : 22,398.57 = 9,158.82 : x
2. Step 2: Convert to fraction form
   16,231.74/22,398.57 = 9,158.82/x
3. Step 3: Cross multiply
   16,231.74x = 22,398.57 × 9,158.82
4. Step 4: Simplify right side
   16,231.74x = 205,144,470.89
5. Step 5: Solve for x
   x = 205,144,470.89/16,231.74
6. Step 6: Final answer
   x = 12,638.48