Finding the Fourth Proportional to 10,288.12, 15,433.78 and 3,361

Step by Step Solution

1. Step 1: Write the proportion equation
   10,288.12 : 15,433.78 = 3,361 : x
2. Step 2: Convert to fraction form
   10,288.12/15,433.78 = 3,361/x
3. Step 3: Cross multiply
   10,288.12x = 15,433.78 × 3,361
4. Step 4: Simplify right side
   10,288.12x = 51,872,934.58
5. Step 5: Solve for x
   x = 51,872,934.58/10,288.12
6. Step 6: Final answer
   x = 5,042.02