Finding the Fourth Proportional to 18,667.50, 27,996.83 and 5,340.09

Step by Step Solution

1. Step 1: Write the proportion equation
   18,667.50 : 27,996.83 = 5,340.09 : x
2. Step 2: Convert to fraction form
   18,667.50/27,996.83 = 5,340.09/x
3. Step 3: Cross multiply
   18,667.50x = 27,996.83 × 5,340.09
4. Step 4: Simplify right side
   18,667.50x = 149,505,562.78
5. Step 5: Solve for x
   x = 149,505,562.78/18,667.50
6. Step 6: Final answer
   x = 8,008.87