Finding the Fourth Proportional to 8,889.79, 12,267.57 and 4,910.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,889.79 : 12,267.57 = 4,910.81 : x
2. Step 2: Convert to fraction form
   8,889.79/12,267.57 = 4,910.81/x
3. Step 3: Cross multiply
   8,889.79x = 12,267.57 × 4,910.81
4. Step 4: Simplify right side
   8,889.79x = 60,243,705.43
5. Step 5: Solve for x
   x = 60,243,705.43/8,889.79
6. Step 6: Final answer
   x = 6,776.73