Finding the Fourth Proportional to 9,688.38, 13,367.89 and 5,708.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,688.38 : 13,367.89 = 5,708.04 : x
2. Step 2: Convert to fraction form
   9,688.38/13,367.89 = 5,708.04/x
3. Step 3: Cross multiply
   9,688.38x = 13,367.89 × 5,708.04
4. Step 4: Simplify right side
   9,688.38x = 76,304,450.84
5. Step 5: Solve for x
   x = 76,304,450.84/9,688.38
6. Step 6: Final answer
   x = 7,875.87