Finding the Fourth Proportional to 9,608.69, 13,260.07 and 5,359.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,608.69 : 13,260.07 = 5,359.61 : x
2. Step 2: Convert to fraction form
   9,608.69/13,260.07 = 5,359.61/x
3. Step 3: Cross multiply
   9,608.69x = 13,260.07 × 5,359.61
4. Step 4: Simplify right side
   9,608.69x = 71,068,803.77
5. Step 5: Solve for x
   x = 71,068,803.77/9,608.69
6. Step 6: Final answer
   x = 7,396.31