Finding the Fourth Proportional to 9,659.45, 13,329.81 and 5,680.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,659.45 : 13,329.81 = 5,680.82 : x
2. Step 2: Convert to fraction form
   9,659.45/13,329.81 = 5,680.82/x
3. Step 3: Cross multiply
   9,659.45x = 13,329.81 × 5,680.82
4. Step 4: Simplify right side
   9,659.45x = 75,724,251.24
5. Step 5: Solve for x
   x = 75,724,251.24/9,659.45
6. Step 6: Final answer
   x = 7,839.40