Finding the Fourth Proportional to 36,019, 49,706.89 and 20,920.05

Step by Step Solution

1. Step 1: Write the proportion equation
   36,019 : 49,706.89 = 20,920.05 : x
2. Step 2: Convert to fraction form
   36,019/49,706.89 = 20,920.05/x
3. Step 3: Cross multiply
   36,019x = 49,706.89 × 20,920.05
4. Step 4: Simplify right side
   36,019x = 1,039,870,624.14
5. Step 5: Solve for x
   x = 1,039,870,624.14/36,019
6. Step 6: Final answer
   x = 28,870.06