Finding the Fourth Proportional to 9,949.20, 13,730.25 and 5,473.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,949.20 : 13,730.25 = 5,473.29 : x
2. Step 2: Convert to fraction form
   9,949.20/13,730.25 = 5,473.29/x
3. Step 3: Cross multiply
   9,949.20x = 13,730.25 × 5,473.29
4. Step 4: Simplify right side
   9,949.20x = 75,149,640.02
5. Step 5: Solve for x
   x = 75,149,640.02/9,949.20
6. Step 6: Final answer
   x = 7,553.33