Finding the Fourth Proportional to 8,560.79, 12,844.89 and 3,018.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,560.79 : 12,844.89 = 3,018.09 : x
2. Step 2: Convert to fraction form
   8,560.79/12,844.89 = 3,018.09/x
3. Step 3: Cross multiply
   8,560.79x = 12,844.89 × 3,018.09
4. Step 4: Simplify right side
   8,560.79x = 38,767,034.06
5. Step 5: Solve for x
   x = 38,767,034.06/8,560.79
6. Step 6: Final answer
   x = 4,528.44