Finding the Fourth Proportional to 9,949.20, 14,920.32 and 4,398.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,949.20 : 14,920.32 = 4,398.84 : x
2. Step 2: Convert to fraction form
   9,949.20/14,920.32 = 4,398.84/x
3. Step 3: Cross multiply
   9,949.20x = 14,920.32 × 4,398.84
4. Step 4: Simplify right side
   9,949.20x = 65,632,100.43
5. Step 5: Solve for x
   x = 65,632,100.43/9,949.20
6. Step 6: Final answer
   x = 6,596.72