Finding the Fourth Proportional to 5,086.69, 7,022.81 and 3,905.41

Step by Step Solution

1. Step 1: Write the proportion equation
   5,086.69 : 7,022.81 = 3,905.41 : x
2. Step 2: Convert to fraction form
   5,086.69/7,022.81 = 3,905.41/x
3. Step 3: Cross multiply
   5,086.69x = 7,022.81 × 3,905.41
4. Step 4: Simplify right side
   5,086.69x = 27,426,932.88
5. Step 5: Solve for x
   x = 27,426,932.88/5,086.69
6. Step 6: Final answer
   x = 5,391.90