Finding the Fourth Proportional to 5,351.91, 7,383.83 and 3,111.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,351.91 : 7,383.83 = 3,111.94 : x
2. Step 2: Convert to fraction form
   5,351.91/7,383.83 = 3,111.94/x
3. Step 3: Cross multiply
   5,351.91x = 7,383.83 × 3,111.94
4. Step 4: Simplify right side
   5,351.91x = 22,978,076.62
5. Step 5: Solve for x
   x = 22,978,076.62/5,351.91
6. Step 6: Final answer
   x = 4,293.43