Finding the Fourth Proportional to 9,545.24, 13,172.42 and 5,353.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,545.24 : 13,172.42 = 5,353.48 : x
2. Step 2: Convert to fraction form
   9,545.24/13,172.42 = 5,353.48/x
3. Step 3: Cross multiply
   9,545.24x = 13,172.42 × 5,353.48
4. Step 4: Simplify right side
   9,545.24x = 70,518,287.02
5. Step 5: Solve for x
   x = 70,518,287.02/9,545.24
6. Step 6: Final answer
   x = 7,387.80