Finding the Fourth Proportional to 8,083.17, 12,123.82 and 2,817.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,083.17 : 12,123.82 = 2,817.28 : x
2. Step 2: Convert to fraction form
   8,083.17/12,123.82 = 2,817.28/x
3. Step 3: Cross multiply
   8,083.17x = 12,123.82 × 2,817.28
4. Step 4: Simplify right side
   8,083.17x = 34,156,195.61
5. Step 5: Solve for x
   x = 34,156,195.61/8,083.17
6. Step 6: Final answer
   x = 4,225.59