Finding the Fourth Proportional to 7,480.98, 10,248.98 and 7,200.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,480.98 : 10,248.98 = 7,200.72 : x
2. Step 2: Convert to fraction form
   7,480.98/10,248.98 = 7,200.72/x
3. Step 3: Cross multiply
   7,480.98x = 10,248.98 × 7,200.72
4. Step 4: Simplify right side
   7,480.98x = 73,800,035.27
5. Step 5: Solve for x
   x = 73,800,035.27/7,480.98
6. Step 6: Final answer
   x = 9,865.02