Finding the Fourth Proportional to 9,949.22, 13,729.73 and 5,472.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,949.22 : 13,729.73 = 5,472.89 : x
2. Step 2: Convert to fraction form
   9,949.22/13,729.73 = 5,472.89/x
3. Step 3: Cross multiply
   9,949.22x = 13,729.73 × 5,472.89
4. Step 4: Simplify right side
   9,949.22x = 75,141,302.02
5. Step 5: Solve for x
   x = 75,141,302.02/9,949.22
6. Step 6: Final answer
   x = 7,552.48