Finding the Fourth Proportional to 8,510.72, 12,765.06 and 2,271.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,510.72 : 12,765.06 = 2,271.20 : x
2. Step 2: Convert to fraction form
   8,510.72/12,765.06 = 2,271.20/x
3. Step 3: Cross multiply
   8,510.72x = 12,765.06 × 2,271.20
4. Step 4: Simplify right side
   8,510.72x = 28,991,940.45
5. Step 5: Solve for x
   x = 28,991,940.45/8,510.72
6. Step 6: Final answer
   x = 3,406.52