Finding the Fourth Proportional to 9,608.71, 13,259.51 and 5,416.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,608.71 : 13,259.51 = 5,416.69 : x
2. Step 2: Convert to fraction form
   9,608.71/13,259.51 = 5,416.69/x
3. Step 3: Cross multiply
   9,608.71x = 13,259.51 × 5,416.69
4. Step 4: Simplify right side
   9,608.71x = 71,822,628.14
5. Step 5: Solve for x
   x = 71,822,628.14/9,608.71
6. Step 6: Final answer
   x = 7,474.74