Finding the Fourth Proportional to 8,667.06, 11,960.48 and 4,688.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667.06 : 11,960.48 = 4,688.12 : x
2. Step 2: Convert to fraction form
   8,667.06/11,960.48 = 4,688.12/x
3. Step 3: Cross multiply
   8,667.06x = 11,960.48 × 4,688.12
4. Step 4: Simplify right side
   8,667.06x = 56,072,082.25
5. Step 5: Solve for x
   x = 56,072,082.25/8,667.06
6. Step 6: Final answer
   x = 6,469.56