Finding the Fourth Proportional to 8,085.30, 12,116.22 and 5,583.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,085.30 : 12,116.22 = 5,583.92 : x
2. Step 2: Convert to fraction form
   8,085.30/12,116.22 = 5,583.92/x
3. Step 3: Cross multiply
   8,085.30x = 12,116.22 × 5,583.92
4. Step 4: Simplify right side
   8,085.30x = 67,655,942.60
5. Step 5: Solve for x
   x = 67,655,942.60/8,085.30
6. Step 6: Final answer
   x = 8,367.77