Finding the Fourth Proportional to 8,404.24, 12,617.52 and 7,179.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,404.24 : 12,617.52 = 7,179.52 : x
2. Step 2: Convert to fraction form
   8,404.24/12,617.52 = 7,179.52/x
3. Step 3: Cross multiply
   8,404.24x = 12,617.52 × 7,179.52
4. Step 4: Simplify right side
   8,404.24x = 90,587,737.19
5. Step 5: Solve for x
   x = 90,587,737.19/8,404.24
6. Step 6: Final answer
   x = 10,778.81