Finding the Fourth Proportional to 10,455.33, 14,428.31 and 5,739.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,455.33 : 14,428.31 = 5,739.51 : x
2. Step 2: Convert to fraction form
   10,455.33/14,428.31 = 5,739.51/x
3. Step 3: Cross multiply
   10,455.33x = 14,428.31 × 5,739.51
4. Step 4: Simplify right side
   10,455.33x = 82,811,400.83
5. Step 5: Solve for x
   x = 82,811,400.83/10,455.33
6. Step 6: Final answer
   x = 7,920.50