Finding the Fourth Proportional to 12,648.84, 17,456.34 and 7,344.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,648.84 : 17,456.34 = 7,344.48 : x
2. Step 2: Convert to fraction form
   12,648.84/17,456.34 = 7,344.48/x
3. Step 3: Cross multiply
   12,648.84x = 17,456.34 × 7,344.48
4. Step 4: Simplify right side
   12,648.84x = 128,207,740.00
5. Step 5: Solve for x
   x = 128,207,740.00/12,648.84
6. Step 6: Final answer
   x = 10,135.93