Finding the Fourth Proportional to 12,280.33, 16,960.62 and 8,294.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,280.33 : 16,960.62 = 8,294.50 : x
2. Step 2: Convert to fraction form
   12,280.33/16,960.62 = 8,294.50/x
3. Step 3: Cross multiply
   12,280.33x = 16,960.62 × 8,294.50
4. Step 4: Simplify right side
   12,280.33x = 140,679,862.59
5. Step 5: Solve for x
   x = 140,679,862.59/12,280.33
6. Step 6: Final answer
   x = 11,455.71