Finding the Fourth Proportional to 8,766.47, 13,141.88 and 3,218.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,766.47 : 13,141.88 = 3,218.53 : x
2. Step 2: Convert to fraction form
   8,766.47/13,141.88 = 3,218.53/x
3. Step 3: Cross multiply
   8,766.47x = 13,141.88 × 3,218.53
4. Step 4: Simplify right side
   8,766.47x = 42,297,510.23
5. Step 5: Solve for x
   x = 42,297,510.23/8,766.47
6. Step 6: Final answer
   x = 4,824.92