Finding the Fourth Proportional to 8,871.17, 12,242.78 and 4,892.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,871.17 : 12,242.78 = 4,892.29 : x
2. Step 2: Convert to fraction form
   8,871.17/12,242.78 = 4,892.29/x
3. Step 3: Cross multiply
   8,871.17x = 12,242.78 × 4,892.29
4. Step 4: Simplify right side
   8,871.17x = 59,895,205.70
5. Step 5: Solve for x
   x = 59,895,205.70/8,871.17
6. Step 6: Final answer
   x = 6,751.67