Finding the Fourth Proportional to 5,512.28, 7,608.72 and 3,528.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,512.28 : 7,608.72 = 3,528.18 : x
2. Step 2: Convert to fraction form
   5,512.28/7,608.72 = 3,528.18/x
3. Step 3: Cross multiply
   5,512.28x = 7,608.72 × 3,528.18
4. Step 4: Simplify right side
   5,512.28x = 26,844,933.73
5. Step 5: Solve for x
   x = 26,844,933.73/5,512.28
6. Step 6: Final answer
   x = 4,870.03