Finding the Fourth Proportional to 8,667.56, 12,981.48 and 7,670.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667.56 : 12,981.48 = 7,670.04 : x
2. Step 2: Convert to fraction form
   8,667.56/12,981.48 = 7,670.04/x
3. Step 3: Cross multiply
   8,667.56x = 12,981.48 × 7,670.04
4. Step 4: Simplify right side
   8,667.56x = 99,568,470.86
5. Step 5: Solve for x
   x = 99,568,470.86/8,667.56
6. Step 6: Final answer
   x = 11,487.49