Finding the Fourth Proportional to 3,839.42, 5,755.77 and 3,186.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839.42 : 5,755.77 = 3,186.73 : x
2. Step 2: Convert to fraction form
   3,839.42/5,755.77 = 3,186.73/x
3. Step 3: Cross multiply
   3,839.42x = 5,755.77 × 3,186.73
4. Step 4: Simplify right side
   3,839.42x = 18,342,056.15
5. Step 5: Solve for x
   x = 18,342,056.15/3,839.42
6. Step 6: Final answer
   x = 4,777.30