Finding the Fourth Proportional to 3,846.78, 5,273.96 and 3,776.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,846.78 : 5,273.96 = 3,776.73 : x
2. Step 2: Convert to fraction form
   3,846.78/5,273.96 = 3,776.73/x
3. Step 3: Cross multiply
   3,846.78x = 5,273.96 × 3,776.73
4. Step 4: Simplify right side
   3,846.78x = 19,918,304.07
5. Step 5: Solve for x
   x = 19,918,304.07/3,846.78
6. Step 6: Final answer
   x = 5,177.92