Finding the Fourth Proportional to 7,118.33, 9,823.56 and 3,974.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,118.33 : 9,823.56 = 3,974.72 : x
2. Step 2: Convert to fraction form
   7,118.33/9,823.56 = 3,974.72/x
3. Step 3: Cross multiply
   7,118.33x = 9,823.56 × 3,974.72
4. Step 4: Simplify right side
   7,118.33x = 39,045,900.40
5. Step 5: Solve for x
   x = 39,045,900.40/7,118.33
6. Step 6: Final answer
   x = 5,485.26