Finding the Fourth Proportional to 10,839.12, 16,260.06 and 3,440.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,839.12 : 16,260.06 = 3,440.94 : x
2. Step 2: Convert to fraction form
   10,839.12/16,260.06 = 3,440.94/x
3. Step 3: Cross multiply
   10,839.12x = 16,260.06 × 3,440.94
4. Step 4: Simplify right side
   10,839.12x = 55,949,890.86
5. Step 5: Solve for x
   x = 55,949,890.86/10,839.12
6. Step 6: Final answer
   x = 5,161.85