Finding the Fourth Proportional to 9,640.84, 14,462.42 and 3,399.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,640.84 : 14,462.42 = 3,399.56 : x
2. Step 2: Convert to fraction form
   9,640.84/14,462.42 = 3,399.56/x
3. Step 3: Cross multiply
   9,640.84x = 14,462.42 × 3,399.56
4. Step 4: Simplify right side
   9,640.84x = 49,165,883.69
5. Step 5: Solve for x
   x = 49,165,883.69/9,640.84
6. Step 6: Final answer
   x = 5,099.75