Finding the Fourth Proportional to 9,665.43, 14,500.44 and 3,425.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.43 : 14,500.44 = 3,425.98 : x
2. Step 2: Convert to fraction form
   9,665.43/14,500.44 = 3,425.98/x
3. Step 3: Cross multiply
   9,665.43x = 14,500.44 × 3,425.98
4. Step 4: Simplify right side
   9,665.43x = 49,678,279.18
5. Step 5: Solve for x
   x = 49,678,279.18/9,665.43
6. Step 6: Final answer
   x = 5,139.79