Finding the Fourth Proportional to 8,869.11, 12,238.83 and 4,889.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,869.11 : 12,238.83 = 4,889.94 : x
2. Step 2: Convert to fraction form
   8,869.11/12,238.83 = 4,889.94/x
3. Step 3: Cross multiply
   8,869.11x = 12,238.83 × 4,889.94
4. Step 4: Simplify right side
   8,869.11x = 59,847,144.37
5. Step 5: Solve for x
   x = 59,847,144.37/8,869.11
6. Step 6: Final answer
   x = 6,747.82