Finding the Fourth Proportional to 8,021.18, 12,028.32 and 2,756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,021.18 : 12,028.32 = 2,756.72 : x
2. Step 2: Convert to fraction form
   8,021.18/12,028.32 = 2,756.72/x
3. Step 3: Cross multiply
   8,021.18x = 12,028.32 × 2,756.72
4. Step 4: Simplify right side
   8,021.18x = 33,158,710.31
5. Step 5: Solve for x
   x = 33,158,710.31/8,021.18
6. Step 6: Final answer
   x = 4,133.89