Finding the Fourth Proportional to 5,388.38, 8,077.71 and 3,745.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388.38 : 8,077.71 = 3,745.70 : x
2. Step 2: Convert to fraction form
   5,388.38/8,077.71 = 3,745.70/x
3. Step 3: Cross multiply
   5,388.38x = 8,077.71 × 3,745.70
4. Step 4: Simplify right side
   5,388.38x = 30,256,678.35
5. Step 5: Solve for x
   x = 30,256,678.35/5,388.38
6. Step 6: Final answer
   x = 5,615.17