Finding the Fourth Proportional to 9,729.07, 13,426.37 and 5,480.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,729.07 : 13,426.37 = 5,480.28 : x
2. Step 2: Convert to fraction form
   9,729.07/13,426.37 = 5,480.28/x
3. Step 3: Cross multiply
   9,729.07x = 13,426.37 × 5,480.28
4. Step 4: Simplify right side
   9,729.07x = 73,580,280.68
5. Step 5: Solve for x
   x = 73,580,280.68/9,729.07
6. Step 6: Final answer
   x = 7,562.93