Finding the Fourth Proportional to 8,061.80, 12,081.60 and 6,085.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,061.80 : 12,081.60 = 6,085.71 : x
2. Step 2: Convert to fraction form
   8,061.80/12,081.60 = 6,085.71/x
3. Step 3: Cross multiply
   8,061.80x = 12,081.60 × 6,085.71
4. Step 4: Simplify right side
   8,061.80x = 73,525,113.94
5. Step 5: Solve for x
   x = 73,525,113.94/8,061.80
6. Step 6: Final answer
   x = 9,120.19