Finding the Fourth Proportional to 12,531.34, 17,294.86 and 8,228.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,531.34 : 17,294.86 = 8,228.12 : x
2. Step 2: Convert to fraction form
   12,531.34/17,294.86 = 8,228.12/x
3. Step 3: Cross multiply
   12,531.34x = 17,294.86 × 8,228.12
4. Step 4: Simplify right side
   12,531.34x = 142,304,183.46
5. Step 5: Solve for x
   x = 142,304,183.46/12,531.34
6. Step 6: Final answer
   x = 11,355.86