Finding the Fourth Proportional to 16,218.30, 22,381.26 and 8,766.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,218.30 : 22,381.26 = 8,766.30 : x
2. Step 2: Convert to fraction form
   16,218.30/22,381.26 = 8,766.30/x
3. Step 3: Cross multiply
   16,218.30x = 22,381.26 × 8,766.30
4. Step 4: Simplify right side
   16,218.30x = 196,200,839.54
5. Step 5: Solve for x
   x = 196,200,839.54/16,218.30
6. Step 6: Final answer
   x = 12,097.50