Finding the Fourth Proportional to 5,361.12, 7,401.78 and 3,786.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,361.12 : 7,401.78 = 3,786.48 : x
2. Step 2: Convert to fraction form
   5,361.12/7,401.78 = 3,786.48/x
3. Step 3: Cross multiply
   5,361.12x = 7,401.78 × 3,786.48
4. Step 4: Simplify right side
   5,361.12x = 28,026,691.93
5. Step 5: Solve for x
   x = 28,026,691.93/5,361.12
6. Step 6: Final answer
   x = 5,227.77