Finding the Fourth Proportional to 8,061.90, 12,085.56 and 2,866.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,061.90 : 12,085.56 = 2,866.56 : x
2. Step 2: Convert to fraction form
   8,061.90/12,085.56 = 2,866.56/x
3. Step 3: Cross multiply
   8,061.90x = 12,085.56 × 2,866.56
4. Step 4: Simplify right side
   8,061.90x = 34,643,982.87
5. Step 5: Solve for x
   x = 34,643,982.87/8,061.90
6. Step 6: Final answer
   x = 4,297.25