Finding the Fourth Proportional to 4,992.24, 6,893.72 and 3,107.05

Step by Step Solution

1. Step 1: Write the proportion equation
   4,992.24 : 6,893.72 = 3,107.05 : x
2. Step 2: Convert to fraction form
   4,992.24/6,893.72 = 3,107.05/x
3. Step 3: Cross multiply
   4,992.24x = 6,893.72 × 3,107.05
4. Step 4: Simplify right side
   4,992.24x = 21,419,132.73
5. Step 5: Solve for x
   x = 21,419,132.73/4,992.24
6. Step 6: Final answer
   x = 4,290.49