Finding the Fourth Proportional to 12,868.60, 17,762.16 and 7,565.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,868.60 : 17,762.16 = 7,565.12 : x
2. Step 2: Convert to fraction form
   12,868.60/17,762.16 = 7,565.12/x
3. Step 3: Cross multiply
   12,868.60x = 17,762.16 × 7,565.12
4. Step 4: Simplify right side
   12,868.60x = 134,372,871.86
5. Step 5: Solve for x
   x = 134,372,871.86/12,868.60
6. Step 6: Final answer
   x = 10,441.92