Finding the Fourth Proportional to 10,162.65, 15,243.78 and 5,229.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,162.65 : 15,243.78 = 5,229.39 : x
2. Step 2: Convert to fraction form
   10,162.65/15,243.78 = 5,229.39/x
3. Step 3: Cross multiply
   10,162.65x = 15,243.78 × 5,229.39
4. Step 4: Simplify right side
   10,162.65x = 79,715,670.69
5. Step 5: Solve for x
   x = 79,715,670.69/10,162.65
6. Step 6: Final answer
   x = 7,843.98