Finding the Fourth Proportional to 9,949.15, 13,730.17 and 5,473.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,949.15 : 13,730.17 = 5,473.09 : x
2. Step 2: Convert to fraction form
   9,949.15/13,730.17 = 5,473.09/x
3. Step 3: Cross multiply
   9,949.15x = 13,730.17 × 5,473.09
4. Step 4: Simplify right side
   9,949.15x = 75,146,428.76
5. Step 5: Solve for x
   x = 75,146,428.76/9,949.15
6. Step 6: Final answer
   x = 7,553.05