Finding the Fourth Proportional to 12,198.18, 18,280.83 and 8,895.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,198.18 : 18,280.83 = 8,895.81 : x
2. Step 2: Convert to fraction form
   12,198.18/18,280.83 = 8,895.81/x
3. Step 3: Cross multiply
   12,198.18x = 18,280.83 × 8,895.81
4. Step 4: Simplify right side
   12,198.18x = 162,622,790.32
5. Step 5: Solve for x
   x = 162,622,790.32/12,198.18
6. Step 6: Final answer
   x = 13,331.73