Finding the Fourth Proportional to 7,118.37, 9,823.55 and 3,974.49

Step by Step Solution

1. Step 1: Write the proportion equation
   7,118.37 : 9,823.55 = 3,974.49 : x
2. Step 2: Convert to fraction form
   7,118.37/9,823.55 = 3,974.49/x
3. Step 3: Cross multiply
   7,118.37x = 9,823.55 × 3,974.49
4. Step 4: Simplify right side
   7,118.37x = 39,043,581.37
5. Step 5: Solve for x
   x = 39,043,581.37/7,118.37
6. Step 6: Final answer
   x = 5,484.90