Finding the Fourth Proportional to 5,479.38, 7,567.83 and 3,993.93

Step by Step Solution

1. Step 1: Write the proportion equation
   5,479.38 : 7,567.83 = 3,993.93 : x
2. Step 2: Convert to fraction form
   5,479.38/7,567.83 = 3,993.93/x
3. Step 3: Cross multiply
   5,479.38x = 7,567.83 × 3,993.93
4. Step 4: Simplify right side
   5,479.38x = 30,225,383.27
5. Step 5: Solve for x
   x = 30,225,383.27/5,479.38
6. Step 6: Final answer
   x = 5,516.20