Finding the Fourth Proportional to 12,230.92, 16,885.83 and 8,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,230.92 : 16,885.83 = 8,870.50 : x
2. Step 2: Convert to fraction form
   12,230.92/16,885.83 = 8,870.50/x
3. Step 3: Cross multiply
   12,230.92x = 16,885.83 × 8,870.50
4. Step 4: Simplify right side
   12,230.92x = 149,785,755.02
5. Step 5: Solve for x
   x = 149,785,755.02/12,230.92
6. Step 6: Final answer
   x = 12,246.48