Finding the Fourth Proportional to 9,674.64, 13,350.69 and 5,425.85

Step by Step Solution

1. Step 1: Write the proportion equation
   9,674.64 : 13,350.69 = 5,425.85 : x
2. Step 2: Convert to fraction form
   9,674.64/13,350.69 = 5,425.85/x
3. Step 3: Cross multiply
   9,674.64x = 13,350.69 × 5,425.85
4. Step 4: Simplify right side
   9,674.64x = 72,438,874.71
5. Step 5: Solve for x
   x = 72,438,874.71/9,674.64
6. Step 6: Final answer
   x = 7,487.50