Finding the Fourth Proportional to 14,820.50, 20,452.86 and 8,448.09

Step by Step Solution

1. Step 1: Write the proportion equation
   14,820.50 : 20,452.86 = 8,448.09 : x
2. Step 2: Convert to fraction form
   14,820.50/20,452.86 = 8,448.09/x
3. Step 3: Cross multiply
   14,820.50x = 20,452.86 × 8,448.09
4. Step 4: Simplify right side
   14,820.50x = 172,787,559.80
5. Step 5: Solve for x
   x = 172,787,559.80/14,820.50
6. Step 6: Final answer
   x = 11,658.69