Finding the Fourth Proportional to 9,766.91, 13,468.25 and 8,355.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,766.91 : 13,468.25 = 8,355.27 : x
2. Step 2: Convert to fraction form
   9,766.91/13,468.25 = 8,355.27/x
3. Step 3: Cross multiply
   9,766.91x = 13,468.25 × 8,355.27
4. Step 4: Simplify right side
   9,766.91x = 112,530,823.40
5. Step 5: Solve for x
   x = 112,530,823.40/9,766.91
6. Step 6: Final answer
   x = 11,521.65