Finding the Fourth Proportional to 8,529.56, 12,796.90 and 2,686.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,529.56 : 12,796.90 = 2,686.22 : x
2. Step 2: Convert to fraction form
   8,529.56/12,796.90 = 2,686.22/x
3. Step 3: Cross multiply
   8,529.56x = 12,796.90 × 2,686.22
4. Step 4: Simplify right side
   8,529.56x = 34,375,288.72
5. Step 5: Solve for x
   x = 34,375,288.72/8,529.56
6. Step 6: Final answer
   x = 4,030.14