Finding the Fourth Proportional to 3,861.44, 5,742.48 and 3,738.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,861.44 : 5,742.48 = 3,738.42 : x
2. Step 2: Convert to fraction form
   3,861.44/5,742.48 = 3,738.42/x
3. Step 3: Cross multiply
   3,861.44x = 5,742.48 × 3,738.42
4. Step 4: Simplify right side
   3,861.44x = 21,467,791.31
5. Step 5: Solve for x
   x = 21,467,791.31/3,861.44
6. Step 6: Final answer
   x = 5,559.53