Finding the Fourth Proportional to 10,821.30, 14,933.84 and 6,105.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,821.30 : 14,933.84 = 6,105.56 : x
2. Step 2: Convert to fraction form
   10,821.30/14,933.84 = 6,105.56/x
3. Step 3: Cross multiply
   10,821.30x = 14,933.84 × 6,105.56
4. Step 4: Simplify right side
   10,821.30x = 91,179,456.15
5. Step 5: Solve for x
   x = 91,179,456.15/10,821.30
6. Step 6: Final answer
   x = 8,425.92