Finding the Fourth Proportional to 6,318.42, 8,721.27 and 3,667.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,318.42 : 8,721.27 = 3,667.02 : x
2. Step 2: Convert to fraction form
   6,318.42/8,721.27 = 3,667.02/x
3. Step 3: Cross multiply
   6,318.42x = 8,721.27 × 3,667.02
4. Step 4: Simplify right side
   6,318.42x = 31,981,071.52
5. Step 5: Solve for x
   x = 31,981,071.52/6,318.42
6. Step 6: Final answer
   x = 5,061.56