Finding the Fourth Proportional to 21,399.98, 32,105.43 and 8,248.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,399.98 : 32,105.43 = 8,248.82 : x
2. Step 2: Convert to fraction form
   21,399.98/32,105.43 = 8,248.82/x
3. Step 3: Cross multiply
   21,399.98x = 32,105.43 × 8,248.82
4. Step 4: Simplify right side
   21,399.98x = 264,831,752.57
5. Step 5: Solve for x
   x = 264,831,752.57/21,399.98
6. Step 6: Final answer
   x = 12,375.33