Finding the Fourth Proportional to 8,012.40, 12,019.56 and 2,817.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,012.40 : 12,019.56 = 2,817.52 : x
2. Step 2: Convert to fraction form
   8,012.40/12,019.56 = 2,817.52/x
3. Step 3: Cross multiply
   8,012.40x = 12,019.56 × 2,817.52
4. Step 4: Simplify right side
   8,012.40x = 33,865,350.69
5. Step 5: Solve for x
   x = 33,865,350.69/8,012.40
6. Step 6: Final answer
   x = 4,226.62