Finding the Fourth Proportional to 8,764.97, 12,096.72 and 4,989.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,764.97 : 12,096.72 = 4,989.05 : x
2. Step 2: Convert to fraction form
   8,764.97/12,096.72 = 4,989.05/x
3. Step 3: Cross multiply
   8,764.97x = 12,096.72 × 4,989.05
4. Step 4: Simplify right side
   8,764.97x = 60,351,140.92
5. Step 5: Solve for x
   x = 60,351,140.92/8,764.97
6. Step 6: Final answer
   x = 6,885.49