Finding the Fourth Proportional to 10,215.49, 14,097.39 and 5,739.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,215.49 : 14,097.39 = 5,739.24 : x
2. Step 2: Convert to fraction form
   10,215.49/14,097.39 = 5,739.24/x
3. Step 3: Cross multiply
   10,215.49x = 14,097.39 × 5,739.24
4. Step 4: Simplify right side
   10,215.49x = 80,908,304.58
5. Step 5: Solve for x
   x = 80,908,304.58/10,215.49
6. Step 6: Final answer
   x = 7,920.16