Finding the Fourth Proportional to 9,766.41, 13,467.55 and 8,354.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,766.41 : 13,467.55 = 8,354.77 : x
2. Step 2: Convert to fraction form
   9,766.41/13,467.55 = 8,354.77/x
3. Step 3: Cross multiply
   9,766.41x = 13,467.55 × 8,354.77
4. Step 4: Simplify right side
   9,766.41x = 112,518,282.71
5. Step 5: Solve for x
   x = 112,518,282.71/9,766.41
6. Step 6: Final answer
   x = 11,520.95