Finding the Fourth Proportional to 9,608.28, 13,259.46 and 5,416.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,608.28 : 13,259.46 = 5,416.60 : x
2. Step 2: Convert to fraction form
   9,608.28/13,259.46 = 5,416.60/x
3. Step 3: Cross multiply
   9,608.28x = 13,259.46 × 5,416.60
4. Step 4: Simplify right side
   9,608.28x = 71,821,191.04
5. Step 5: Solve for x
   x = 71,821,191.04/9,608.28
6. Step 6: Final answer
   x = 7,474.93