Finding the Fourth Proportional to 10,821.20, 14,933.23 and 6,105.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,821.20 : 14,933.23 = 6,105.51 : x
2. Step 2: Convert to fraction form
   10,821.20/14,933.23 = 6,105.51/x
3. Step 3: Cross multiply
   10,821.20x = 14,933.23 × 6,105.51
4. Step 4: Simplify right side
   10,821.20x = 91,174,969.83
5. Step 5: Solve for x
   x = 91,174,969.83/10,821.20
6. Step 6: Final answer
   x = 8,425.59