Finding the Fourth Proportional to 5,086.44, 7,022.46 and 3,905.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,086.44 : 7,022.46 = 3,905.16 : x
2. Step 2: Convert to fraction form
   5,086.44/7,022.46 = 3,905.16/x
3. Step 3: Cross multiply
   5,086.44x = 7,022.46 × 3,905.16
4. Step 4: Simplify right side
   5,086.44x = 27,423,829.89
5. Step 5: Solve for x
   x = 27,423,829.89/5,086.44
6. Step 6: Final answer
   x = 5,391.56