Finding the Fourth Proportional to 5,669.27, 7,814.93 and 3,986.09

Step by Step Solution

1. Step 1: Write the proportion equation
   5,669.27 : 7,814.93 = 3,986.09 : x
2. Step 2: Convert to fraction form
   5,669.27/7,814.93 = 3,986.09/x
3. Step 3: Cross multiply
   5,669.27x = 7,814.93 × 3,986.09
4. Step 4: Simplify right side
   5,669.27x = 31,151,013.93
5. Step 5: Solve for x
   x = 31,151,013.93/5,669.27
6. Step 6: Final answer
   x = 5,494.71