Finding the Fourth Proportional to 5,478.54, 8,223.27 and 3,723.67

Step by Step Solution

1. Step 1: Write the proportion equation
   5,478.54 : 8,223.27 = 3,723.67 : x
2. Step 2: Convert to fraction form
   5,478.54/8,223.27 = 3,723.67/x
3. Step 3: Cross multiply
   5,478.54x = 8,223.27 × 3,723.67
4. Step 4: Simplify right side
   5,478.54x = 30,620,743.80
5. Step 5: Solve for x
   x = 30,620,743.80/5,478.54
6. Step 6: Final answer
   x = 5,589.22