Finding the Fourth Proportional to 16,160.34, 22,301.06 and 9,086.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,160.34 : 22,301.06 = 9,086.78 : x
2. Step 2: Convert to fraction form
   16,160.34/22,301.06 = 9,086.78/x
3. Step 3: Cross multiply
   16,160.34x = 22,301.06 × 9,086.78
4. Step 4: Simplify right side
   16,160.34x = 202,644,836.31
5. Step 5: Solve for x
   x = 202,644,836.31/16,160.34
6. Step 6: Final answer
   x = 12,539.64