Finding the Fourth Proportional to 9,085.76, 12,573.79 and 8,867.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,085.76 : 12,573.79 = 8,867.24 : x
2. Step 2: Convert to fraction form
   9,085.76/12,573.79 = 8,867.24/x
3. Step 3: Cross multiply
   9,085.76x = 12,573.79 × 8,867.24
4. Step 4: Simplify right side
   9,085.76x = 111,494,728.60
5. Step 5: Solve for x
   x = 111,494,728.60/9,085.76
6. Step 6: Final answer
   x = 12,271.38