Finding the Fourth Proportional to 36,715.50, 50,667.39 and 21,811.50

Step by Step Solution

1. Step 1: Write the proportion equation
   36,715.50 : 50,667.39 = 21,811.50 : x
2. Step 2: Convert to fraction form
   36,715.50/50,667.39 = 21,811.50/x
3. Step 3: Cross multiply
   36,715.50x = 50,667.39 × 21,811.50
4. Step 4: Simplify right side
   36,715.50x = 1,105,131,776.99
5. Step 5: Solve for x
   x = 1,105,131,776.99/36,715.50
6. Step 6: Final answer
   x = 30,099.87