Finding the Fourth Proportional to 6,443.35, 9,658.50 and 4,073.20

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.35 : 9,658.50 = 4,073.20 : x
2. Step 2: Convert to fraction form
   6,443.35/9,658.50 = 4,073.20/x
3. Step 3: Cross multiply
   6,443.35x = 9,658.50 × 4,073.20
4. Step 4: Simplify right side
   6,443.35x = 39,341,002.20
5. Step 5: Solve for x
   x = 39,341,002.20/6,443.35
6. Step 6: Final answer
   x = 6,105.68