Finding the Fourth Proportional to 7,118.37, 9,822.43 and 3,974.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,118.37 : 9,822.43 = 3,974.69 : x
2. Step 2: Convert to fraction form
   7,118.37/9,822.43 = 3,974.69/x
3. Step 3: Cross multiply
   7,118.37x = 9,822.43 × 3,974.69
4. Step 4: Simplify right side
   7,118.37x = 39,041,114.30
5. Step 5: Solve for x
   x = 39,041,114.30/7,118.37
6. Step 6: Final answer
   x = 5,484.56