Finding the Fourth Proportional to 7,002.48, 9,657.72 and 5,235.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.48 : 9,657.72 = 5,235.60 : x
2. Step 2: Convert to fraction form
   7,002.48/9,657.72 = 5,235.60/x
3. Step 3: Cross multiply
   7,002.48x = 9,657.72 × 5,235.60
4. Step 4: Simplify right side
   7,002.48x = 50,563,958.83
5. Step 5: Solve for x
   x = 50,563,958.83/7,002.48
6. Step 6: Final answer
   x = 7,220.86