Finding the Fourth Proportional to 8,308.54, 12,472.05 and 4,147.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308.54 : 12,472.05 = 4,147.42 : x
2. Step 2: Convert to fraction form
   8,308.54/12,472.05 = 4,147.42/x
3. Step 3: Cross multiply
   8,308.54x = 12,472.05 × 4,147.42
4. Step 4: Simplify right side
   8,308.54x = 51,726,829.61
5. Step 5: Solve for x
   x = 51,726,829.61/8,308.54
6. Step 6: Final answer
   x = 6,225.74