Finding the Fourth Proportional to 8,086.36, 12,126.52 and 2,820.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,086.36 : 12,126.52 = 2,820.02 : x
2. Step 2: Convert to fraction form
   8,086.36/12,126.52 = 2,820.02/x
3. Step 3: Cross multiply
   8,086.36x = 12,126.52 × 2,820.02
4. Step 4: Simplify right side
   8,086.36x = 34,197,028.93
5. Step 5: Solve for x
   x = 34,197,028.93/8,086.36
6. Step 6: Final answer
   x = 4,228.98