Finding the Fourth Proportional to 8,766.96, 12,099.55 and 4,989.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,766.96 : 12,099.55 = 4,989.39 : x
2. Step 2: Convert to fraction form
   8,766.96/12,099.55 = 4,989.39/x
3. Step 3: Cross multiply
   8,766.96x = 12,099.55 × 4,989.39
4. Step 4: Simplify right side
   8,766.96x = 60,369,373.77
5. Step 5: Solve for x
   x = 60,369,373.77/8,766.96
6. Step 6: Final answer
   x = 6,886.01