Finding the Fourth Proportional to 3,992.72, 5,991.24 and 3,847.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992.72 : 5,991.24 = 3,847.28 : x
2. Step 2: Convert to fraction form
   3,992.72/5,991.24 = 3,847.28/x
3. Step 3: Cross multiply
   3,992.72x = 5,991.24 × 3,847.28
4. Step 4: Simplify right side
   3,992.72x = 23,049,977.83
5. Step 5: Solve for x
   x = 23,049,977.83/3,992.72
6. Step 6: Final answer
   x = 5,773.00