Finding the Fourth Proportional to 8,716.49, 12,028.72 and 4,940.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,716.49 : 12,028.72 = 4,940.37 : x
2. Step 2: Convert to fraction form
   8,716.49/12,028.72 = 4,940.37/x
3. Step 3: Cross multiply
   8,716.49x = 12,028.72 × 4,940.37
4. Step 4: Simplify right side
   8,716.49x = 59,426,302.72
5. Step 5: Solve for x
   x = 59,426,302.72/8,716.49
6. Step 6: Final answer
   x = 6,817.69