Finding the Fourth Proportional to 9,640.88, 14,462.46 and 3,399.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,640.88 : 14,462.46 = 3,399.59 : x
2. Step 2: Convert to fraction form
   9,640.88/14,462.46 = 3,399.59/x
3. Step 3: Cross multiply
   9,640.88x = 14,462.46 × 3,399.59
4. Step 4: Simplify right side
   9,640.88x = 49,166,470.55
5. Step 5: Solve for x
   x = 49,166,470.55/9,640.88
6. Step 6: Final answer
   x = 5,099.79