Finding the Fourth Proportional to 5,608.69, 7,739.89 and 3,251.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,608.69 : 7,739.89 = 3,251.05 : x
2. Step 2: Convert to fraction form
   5,608.69/7,739.89 = 3,251.05/x
3. Step 3: Cross multiply
   5,608.69x = 7,739.89 × 3,251.05
4. Step 4: Simplify right side
   5,608.69x = 25,162,769.38
5. Step 5: Solve for x
   x = 25,162,769.38/5,608.69
6. Step 6: Final answer
   x = 4,486.39