Finding the Fourth Proportional to 18,662.46, 27,983.89 and 5,513.05

Step by Step Solution

1. Step 1: Write the proportion equation
   18,662.46 : 27,983.89 = 5,513.05 : x
2. Step 2: Convert to fraction form
   18,662.46/27,983.89 = 5,513.05/x
3. Step 3: Cross multiply
   18,662.46x = 27,983.89 × 5,513.05
4. Step 4: Simplify right side
   18,662.46x = 154,276,584.76
5. Step 5: Solve for x
   x = 154,276,584.76/18,662.46
6. Step 6: Final answer
   x = 8,266.68