Finding the Fourth Proportional to 6,447.48, 9,658.86 and 4,363.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,447.48 : 9,658.86 = 4,363.89 : x
2. Step 2: Convert to fraction form
   6,447.48/9,658.86 = 4,363.89/x
3. Step 3: Cross multiply
   6,447.48x = 9,658.86 × 4,363.89
4. Step 4: Simplify right side
   6,447.48x = 42,150,202.57
5. Step 5: Solve for x
   x = 42,150,202.57/6,447.48
6. Step 6: Final answer
   x = 6,537.47