Finding the Fourth Proportional to 5,520.92, 7,615.50 and 3,946.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,520.92 : 7,615.50 = 3,946.28 : x
2. Step 2: Convert to fraction form
   5,520.92/7,615.50 = 3,946.28/x
3. Step 3: Cross multiply
   5,520.92x = 7,615.50 × 3,946.28
4. Step 4: Simplify right side
   5,520.92x = 30,052,895.34
5. Step 5: Solve for x
   x = 30,052,895.34/5,520.92
6. Step 6: Final answer
   x = 5,443.46