Finding the Fourth Proportional to 5,388.37, 7,435.82 and 3,119.40

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388.37 : 7,435.82 = 3,119.40 : x
2. Step 2: Convert to fraction form
   5,388.37/7,435.82 = 3,119.40/x
3. Step 3: Cross multiply
   5,388.37x = 7,435.82 × 3,119.40
4. Step 4: Simplify right side
   5,388.37x = 23,195,273.22
5. Step 5: Solve for x
   x = 23,195,273.22/5,388.37
6. Step 6: Final answer
   x = 4,304.69