Finding the Fourth Proportional to 16,242.34, 22,414.43 and 8,790.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,242.34 : 22,414.43 = 8,790.34 : x
2. Step 2: Convert to fraction form
   16,242.34/22,414.43 = 8,790.34/x
3. Step 3: Cross multiply
   16,242.34x = 22,414.43 × 8,790.34
4. Step 4: Simplify right side
   16,242.34x = 197,030,304.58
5. Step 5: Solve for x
   x = 197,030,304.58/16,242.34
6. Step 6: Final answer
   x = 12,130.66