Finding the Fourth Proportional to 36,131.50, 49,861.47 and 20,219.69

Step by Step Solution

1. Step 1: Write the proportion equation
   36,131.50 : 49,861.47 = 20,219.69 : x
2. Step 2: Convert to fraction form
   36,131.50/49,861.47 = 20,219.69/x
3. Step 3: Cross multiply
   36,131.50x = 49,861.47 × 20,219.69
4. Step 4: Simplify right side
   36,131.50x = 1,008,183,666.82
5. Step 5: Solve for x
   x = 1,008,183,666.82/36,131.50
6. Step 6: Final answer
   x = 27,903.18