Finding the Fourth Proportional to 9,660.30, 14,490.72 and 3,419.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,660.30 : 14,490.72 = 3,419.43 : x
2. Step 2: Convert to fraction form
   9,660.30/14,490.72 = 3,419.43/x
3. Step 3: Cross multiply
   9,660.30x = 14,490.72 × 3,419.43
4. Step 4: Simplify right side
   9,660.30x = 49,550,002.69
5. Step 5: Solve for x
   x = 49,550,002.69/9,660.30
6. Step 6: Final answer
   x = 5,129.24