Finding the Fourth Proportional to 16,160.16, 22,300.92 and 9,086.64

Step by Step Solution

1. Step 1: Write the proportion equation
   16,160.16 : 22,300.92 = 9,086.64 : x
2. Step 2: Convert to fraction form
   16,160.16/22,300.92 = 9,086.64/x
3. Step 3: Cross multiply
   16,160.16x = 22,300.92 × 9,086.64
4. Step 4: Simplify right side
   16,160.16x = 202,640,431.71
5. Step 5: Solve for x
   x = 202,640,431.71/16,160.16
6. Step 6: Final answer
   x = 12,539.51