Finding the Fourth Proportional to 9,659.22, 13,328.62 and 5,409.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,659.22 : 13,328.62 = 5,409.69 : x
2. Step 2: Convert to fraction form
   9,659.22/13,328.62 = 5,409.69/x
3. Step 3: Cross multiply
   9,659.22x = 13,328.62 × 5,409.69
4. Step 4: Simplify right side
   9,659.22x = 72,103,702.33
5. Step 5: Solve for x
   x = 72,103,702.33/9,659.22
6. Step 6: Final answer
   x = 7,464.75