Finding the Fourth Proportional to 8,667.24, 12,995.64 and 3,981.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667.24 : 12,995.64 = 3,981.36 : x
2. Step 2: Convert to fraction form
   8,667.24/12,995.64 = 3,981.36/x
3. Step 3: Cross multiply
   8,667.24x = 12,995.64 × 3,981.36
4. Step 4: Simplify right side
   8,667.24x = 51,740,321.27
5. Step 5: Solve for x
   x = 51,740,321.27/8,667.24
6. Step 6: Final answer
   x = 5,969.64