Finding the Fourth Proportional to 7,016.45, 10,515.56 and 2,851.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,016.45 : 10,515.56 = 2,851.61 : x
2. Step 2: Convert to fraction form
   7,016.45/10,515.56 = 2,851.61/x
3. Step 3: Cross multiply
   7,016.45x = 10,515.56 × 2,851.61
4. Step 4: Simplify right side
   7,016.45x = 29,986,228.93
5. Step 5: Solve for x
   x = 29,986,228.93/7,016.45
6. Step 6: Final answer
   x = 4,273.71