Finding the Fourth Proportional to 8,928.39, 12,320.96 and 4,949.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,928.39 : 12,320.96 = 4,949.49 : x
2. Step 2: Convert to fraction form
   8,928.39/12,320.96 = 4,949.49/x
3. Step 3: Cross multiply
   8,928.39x = 12,320.96 × 4,949.49
4. Step 4: Simplify right side
   8,928.39x = 60,982,443.56
5. Step 5: Solve for x
   x = 60,982,443.56/8,928.39
6. Step 6: Final answer
   x = 6,830.17