Finding the Fourth Proportional to 9,710.49, 13,399.97 and 5,730.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,710.49 : 13,399.97 = 5,730.15 : x
2. Step 2: Convert to fraction form
   9,710.49/13,399.97 = 5,730.15/x
3. Step 3: Cross multiply
   9,710.49x = 13,399.97 × 5,730.15
4. Step 4: Simplify right side
   9,710.49x = 76,783,859.69
5. Step 5: Solve for x
   x = 76,783,859.69/9,710.49
6. Step 6: Final answer
   x = 7,907.31