Finding the Fourth Proportional to 6,318.69, 8,721.72 and 3,667.16

Step by Step Solution

1. Step 1: Write the proportion equation
   6,318.69 : 8,721.72 = 3,667.16 : x
2. Step 2: Convert to fraction form
   6,318.69/8,721.72 = 3,667.16/x
3. Step 3: Cross multiply
   6,318.69x = 8,721.72 × 3,667.16
4. Step 4: Simplify right side
   6,318.69x = 31,983,899.11
5. Step 5: Solve for x
   x = 31,983,899.11/6,318.69
6. Step 6: Final answer
   x = 5,061.79