Finding the Fourth Proportional to 8,512.24, 12,769.98 and 2,667.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,512.24 : 12,769.98 = 2,667.28 : x
2. Step 2: Convert to fraction form
   8,512.24/12,769.98 = 2,667.28/x
3. Step 3: Cross multiply
   8,512.24x = 12,769.98 × 2,667.28
4. Step 4: Simplify right side
   8,512.24x = 34,061,112.25
5. Step 5: Solve for x
   x = 34,061,112.25/8,512.24
6. Step 6: Final answer
   x = 4,001.43