Finding the Fourth Proportional to 5,404.87, 8,105.82 and 3,427.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.87 : 8,105.82 = 3,427.57 : x
2. Step 2: Convert to fraction form
   5,404.87/8,105.82 = 3,427.57/x
3. Step 3: Cross multiply
   5,404.87x = 8,105.82 × 3,427.57
4. Step 4: Simplify right side
   5,404.87x = 27,783,265.46
5. Step 5: Solve for x
   x = 27,783,265.46/5,404.87
6. Step 6: Final answer
   x = 5,140.41