Finding the Fourth Proportional to 9,708.66, 13,397.79 and 5,401.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,708.66 : 13,397.79 = 5,401.59 : x
2. Step 2: Convert to fraction form
   9,708.66/13,397.79 = 5,401.59/x
3. Step 3: Cross multiply
   9,708.66x = 13,397.79 × 5,401.59
4. Step 4: Simplify right side
   9,708.66x = 72,369,301.50
5. Step 5: Solve for x
   x = 72,369,301.50/9,708.66
6. Step 6: Final answer
   x = 7,454.10