Finding the Fourth Proportional to 8,766.35, 13,141.72 and 3,218.41

Step by Step Solution

1. Step 1: Write the proportion equation
   8,766.35 : 13,141.72 = 3,218.41 : x
2. Step 2: Convert to fraction form
   8,766.35/13,141.72 = 3,218.41/x
3. Step 3: Cross multiply
   8,766.35x = 13,141.72 × 3,218.41
4. Step 4: Simplify right side
   8,766.35x = 42,295,443.07
5. Step 5: Solve for x
   x = 42,295,443.07/8,766.35
6. Step 6: Final answer
   x = 4,824.75