Finding the Fourth Proportional to 12,868.48, 17,761.84 and 7,282.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,868.48 : 17,761.84 = 7,282.72 : x
2. Step 2: Convert to fraction form
   12,868.48/17,761.84 = 7,282.72/x
3. Step 3: Cross multiply
   12,868.48x = 17,761.84 × 7,282.72
4. Step 4: Simplify right side
   12,868.48x = 129,354,507.40
5. Step 5: Solve for x
   x = 129,354,507.40/12,868.48
6. Step 6: Final answer
   x = 10,052.04