Finding the Fourth Proportional to 8,667.41, 12,993.20 and 3,119.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667.41 : 12,993.20 = 3,119.49 : x
2. Step 2: Convert to fraction form
   8,667.41/12,993.20 = 3,119.49/x
3. Step 3: Cross multiply
   8,667.41x = 12,993.20 × 3,119.49
4. Step 4: Simplify right side
   8,667.41x = 40,532,165.27
5. Step 5: Solve for x
   x = 40,532,165.27/8,667.41
6. Step 6: Final answer
   x = 4,676.39