Finding the Fourth Proportional to 13,667.00, 18,861.89 and 8,365.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,667.00 : 18,861.89 = 8,365.35 : x
2. Step 2: Convert to fraction form
   13,667.00/18,861.89 = 8,365.35/x
3. Step 3: Cross multiply
   13,667.00x = 18,861.89 × 8,365.35
4. Step 4: Simplify right side
   13,667.00x = 157,786,269.68
5. Step 5: Solve for x
   x = 157,786,269.68/13,667.00
6. Step 6: Final answer
   x = 11,545.05