Finding the Fourth Proportional to 9,729.67, 13,426.18 and 5,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,729.67 : 13,426.18 = 5,480.50 : x
2. Step 2: Convert to fraction form
   9,729.67/13,426.18 = 5,480.50/x
3. Step 3: Cross multiply
   9,729.67x = 13,426.18 × 5,480.50
4. Step 4: Simplify right side
   9,729.67x = 73,582,179.49
5. Step 5: Solve for x
   x = 73,582,179.49/9,729.67
6. Step 6: Final answer
   x = 7,562.66