Finding the Fourth Proportional to 8,587.98, 12,881.34 and 2,743.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,587.98 : 12,881.34 = 2,743.02 : x
2. Step 2: Convert to fraction form
   8,587.98/12,881.34 = 2,743.02/x
3. Step 3: Cross multiply
   8,587.98x = 12,881.34 × 2,743.02
4. Step 4: Simplify right side
   8,587.98x = 35,333,773.25
5. Step 5: Solve for x
   x = 35,333,773.25/8,587.98
6. Step 6: Final answer
   x = 4,114.33