Finding the Fourth Proportional to 16,160.91, 22,301.89 and 9,087.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,160.91 : 22,301.89 = 9,087.28 : x
2. Step 2: Convert to fraction form
   16,160.91/22,301.89 = 9,087.28/x
3. Step 3: Cross multiply
   16,160.91x = 22,301.89 × 9,087.28
4. Step 4: Simplify right side
   16,160.91x = 202,663,518.96
5. Step 5: Solve for x
   x = 202,663,518.96/16,160.91
6. Step 6: Final answer
   x = 12,540.35