Finding the Fourth Proportional to 16,196.12, 22,350.72 and 9,122.66

Step by Step Solution

1. Step 1: Write the proportion equation
   16,196.12 : 22,350.72 = 9,122.66 : x
2. Step 2: Convert to fraction form
   16,196.12/22,350.72 = 9,122.66/x
3. Step 3: Cross multiply
   16,196.12x = 22,350.72 × 9,122.66
4. Step 4: Simplify right side
   16,196.12x = 203,898,019.32
5. Step 5: Solve for x
   x = 203,898,019.32/16,196.12
6. Step 6: Final answer
   x = 12,589.31