Finding the Fourth Proportional to 10,821.43, 14,934.27 and 6,105.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,821.43 : 14,934.27 = 6,105.61 : x
2. Step 2: Convert to fraction form
   10,821.43/14,934.27 = 6,105.61/x
3. Step 3: Cross multiply
   10,821.43x = 14,934.27 × 6,105.61
4. Step 4: Simplify right side
   10,821.43x = 91,182,828.25
5. Step 5: Solve for x
   x = 91,182,828.25/10,821.43
6. Step 6: Final answer
   x = 8,426.13