Finding the Fourth Proportional to 7,179.82, 9,907.83 and 3,993.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,179.82 : 9,907.83 = 3,993.10 : x
2. Step 2: Convert to fraction form
   7,179.82/9,907.83 = 3,993.10/x
3. Step 3: Cross multiply
   7,179.82x = 9,907.83 × 3,993.10
4. Step 4: Simplify right side
   7,179.82x = 39,562,906.43
5. Step 5: Solve for x
   x = 39,562,906.43/7,179.82
6. Step 6: Final answer
   x = 5,510.30