Finding the Fourth Proportional to 10,231.10, 15,351.42 and 5,298.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,231.10 : 15,351.42 = 5,298.05 : x
2. Step 2: Convert to fraction form
   10,231.10/15,351.42 = 5,298.05/x
3. Step 3: Cross multiply
   10,231.10x = 15,351.42 × 5,298.05
4. Step 4: Simplify right side
   10,231.10x = 81,332,513.97
5. Step 5: Solve for x
   x = 81,332,513.97/10,231.10
6. Step 6: Final answer
   x = 7,949.54