Finding the Fourth Proportional to 8,579.58, 12,871.29 and 2,736.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,579.58 : 12,871.29 = 2,736.54 : x
2. Step 2: Convert to fraction form
   8,579.58/12,871.29 = 2,736.54/x
3. Step 3: Cross multiply
   8,579.58x = 12,871.29 × 2,736.54
4. Step 4: Simplify right side
   8,579.58x = 35,222,799.94
5. Step 5: Solve for x
   x = 35,222,799.94/8,579.58
6. Step 6: Final answer
   x = 4,105.42