Finding the Fourth Proportional to 16,057.78, 22,167.18 and 9,340.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,057.78 : 22,167.18 = 9,340.96 : x
2. Step 2: Convert to fraction form
   16,057.78/22,167.18 = 9,340.96/x
3. Step 3: Cross multiply
   16,057.78x = 22,167.18 × 9,340.96
4. Step 4: Simplify right side
   16,057.78x = 207,062,741.69
5. Step 5: Solve for x
   x = 207,062,741.69/16,057.78
6. Step 6: Final answer
   x = 12,894.85