Finding the Fourth Proportional to 5,568.28, 7,694.46 and 3,993.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,568.28 : 7,694.46 = 3,993.88 : x
2. Step 2: Convert to fraction form
   5,568.28/7,694.46 = 3,993.88/x
3. Step 3: Cross multiply
   5,568.28x = 7,694.46 × 3,993.88
4. Step 4: Simplify right side
   5,568.28x = 30,730,749.90
5. Step 5: Solve for x
   x = 30,730,749.90/5,568.28
6. Step 6: Final answer
   x = 5,518.89