Finding the Fourth Proportional to 9,687.38, 13,366.52 and 5,707.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,687.38 : 13,366.52 = 5,707.04 : x
2. Step 2: Convert to fraction form
   9,687.38/13,366.52 = 5,707.04/x
3. Step 3: Cross multiply
   9,687.38x = 13,366.52 × 5,707.04
4. Step 4: Simplify right side
   9,687.38x = 76,283,168.93
5. Step 5: Solve for x
   x = 76,283,168.93/9,687.38
6. Step 6: Final answer
   x = 7,874.49