Finding the Fourth Proportional to 16,448.72, 24,661.56 and 8,118.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,448.72 : 24,661.56 = 8,118.56 : x
2. Step 2: Convert to fraction form
   16,448.72/24,661.56 = 8,118.56/x
3. Step 3: Cross multiply
   16,448.72x = 24,661.56 × 8,118.56
4. Step 4: Simplify right side
   16,448.72x = 200,216,354.55
5. Step 5: Solve for x
   x = 200,216,354.55/16,448.72
6. Step 6: Final answer
   x = 12,172.15