Finding the Fourth Proportional to 16,040.86, 22,136.22 and 8,871.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,040.86 : 22,136.22 = 8,871.28 : x
2. Step 2: Convert to fraction form
   16,040.86/22,136.22 = 8,871.28/x
3. Step 3: Cross multiply
   16,040.86x = 22,136.22 × 8,871.28
4. Step 4: Simplify right side
   16,040.86x = 196,376,605.76
5. Step 5: Solve for x
   x = 196,376,605.76/16,040.86
6. Step 6: Final answer
   x = 12,242.27