Finding the Fourth Proportional to 12,682.39, 17,502.32 and 7,648.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,682.39 : 17,502.32 = 7,648.24 : x
2. Step 2: Convert to fraction form
   12,682.39/17,502.32 = 7,648.24/x
3. Step 3: Cross multiply
   12,682.39x = 17,502.32 × 7,648.24
4. Step 4: Simplify right side
   12,682.39x = 133,861,919.28
5. Step 5: Solve for x
   x = 133,861,919.28/12,682.39
6. Step 6: Final answer
   x = 10,554.95