Finding the Fourth Proportional to 6,479.16, 8,940.42 and 3,684.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,479.16 : 8,940.42 = 3,684.72 : x
2. Step 2: Convert to fraction form
   6,479.16/8,940.42 = 3,684.72/x
3. Step 3: Cross multiply
   6,479.16x = 8,940.42 × 3,684.72
4. Step 4: Simplify right side
   6,479.16x = 32,942,944.38
5. Step 5: Solve for x
   x = 32,942,944.38/6,479.16
6. Step 6: Final answer
   x = 5,084.45