Finding the Fourth Proportional to 8,010.40, 12,016.56 and 2,815.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,010.40 : 12,016.56 = 2,815.52 : x
2. Step 2: Convert to fraction form
   8,010.40/12,016.56 = 2,815.52/x
3. Step 3: Cross multiply
   8,010.40x = 12,016.56 × 2,815.52
4. Step 4: Simplify right side
   8,010.40x = 33,832,865.01
5. Step 5: Solve for x
   x = 33,832,865.01/8,010.40
6. Step 6: Final answer
   x = 4,223.62