Finding the Fourth Proportional to 6,379.79, 8,806.49 and 3,728.04

Step by Step Solution

1. Step 1: Write the proportion equation
   6,379.79 : 8,806.49 = 3,728.04 : x
2. Step 2: Convert to fraction form
   6,379.79/8,806.49 = 3,728.04/x
3. Step 3: Cross multiply
   6,379.79x = 8,806.49 × 3,728.04
4. Step 4: Simplify right side
   6,379.79x = 32,830,928.34
5. Step 5: Solve for x
   x = 32,830,928.34/6,379.79
6. Step 6: Final answer
   x = 5,146.09