Finding the Fourth Proportional to 10,690.38, 14,756.78 and 9,569.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,690.38 : 14,756.78 = 9,569.24 : x
2. Step 2: Convert to fraction form
   10,690.38/14,756.78 = 9,569.24/x
3. Step 3: Cross multiply
   10,690.38x = 14,756.78 × 9,569.24
4. Step 4: Simplify right side
   10,690.38x = 141,211,174.92
5. Step 5: Solve for x
   x = 141,211,174.92/10,690.38
6. Step 6: Final answer
   x = 13,209.18