Finding the Fourth Proportional to 8,706.96, 12,016.92 and 5,171.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,706.96 : 12,016.92 = 5,171.04 : x
2. Step 2: Convert to fraction form
   8,706.96/12,016.92 = 5,171.04/x
3. Step 3: Cross multiply
   8,706.96x = 12,016.92 × 5,171.04
4. Step 4: Simplify right side
   8,706.96x = 62,139,974.00
5. Step 5: Solve for x
   x = 62,139,974.00/8,706.96
6. Step 6: Final answer
   x = 7,136.82