Finding the Fourth Proportional to 10,288.25, 15,452.87 and 9,707.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,288.25 : 15,452.87 = 9,707.98 : x
2. Step 2: Convert to fraction form
   10,288.25/15,452.87 = 9,707.98/x
3. Step 3: Cross multiply
   10,288.25x = 15,452.87 × 9,707.98
4. Step 4: Simplify right side
   10,288.25x = 150,016,152.90
5. Step 5: Solve for x
   x = 150,016,152.90/10,288.25
6. Step 6: Final answer
   x = 14,581.32