Finding the Fourth Proportional to 36,105.72, 49,828.19 and 20,190.17

Step by Step Solution

1. Step 1: Write the proportion equation
   36,105.72 : 49,828.19 = 20,190.17 : x
2. Step 2: Convert to fraction form
   36,105.72/49,828.19 = 20,190.17/x
3. Step 3: Cross multiply
   36,105.72x = 49,828.19 × 20,190.17
4. Step 4: Simplify right side
   36,105.72x = 1,006,039,626.89
5. Step 5: Solve for x
   x = 1,006,039,626.89/36,105.72
6. Step 6: Final answer
   x = 27,863.72