Finding the Fourth Proportional to 10,425.51, 14,386.66 and 5,709.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,425.51 : 14,386.66 = 5,709.69 : x
2. Step 2: Convert to fraction form
   10,425.51/14,386.66 = 5,709.69/x
3. Step 3: Cross multiply
   10,425.51x = 14,386.66 × 5,709.69
4. Step 4: Simplify right side
   10,425.51x = 82,143,419.12
5. Step 5: Solve for x
   x = 82,143,419.12/10,425.51
6. Step 6: Final answer
   x = 7,879.08