Finding the Fourth Proportional to 13,667.27, 18,866.12 and 10,684.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,667.27 : 18,866.12 = 10,684.06 : x
2. Step 2: Convert to fraction form
   13,667.27/18,866.12 = 10,684.06/x
3. Step 3: Cross multiply
   13,667.27x = 18,866.12 × 10,684.06
4. Step 4: Simplify right side
   13,667.27x = 201,566,857.72
5. Step 5: Solve for x
   x = 201,566,857.72/13,667.27
6. Step 6: Final answer
   x = 14,748.14