Finding the Fourth Proportional to 9,667.92, 13,348.15 and 7,425.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,667.92 : 13,348.15 = 7,425.78 : x
2. Step 2: Convert to fraction form
   9,667.92/13,348.15 = 7,425.78/x
3. Step 3: Cross multiply
   9,667.92x = 13,348.15 × 7,425.78
4. Step 4: Simplify right side
   9,667.92x = 99,120,425.31
5. Step 5: Solve for x
   x = 99,120,425.31/9,667.92
6. Step 6: Final answer
   x = 10,252.51