Finding the Fourth Proportional to 20,458.97, 30,688.42 and 5,667.83

Step by Step Solution

1. Step 1: Write the proportion equation
   20,458.97 : 30,688.42 = 5,667.83 : x
2. Step 2: Convert to fraction form
   20,458.97/30,688.42 = 5,667.83/x
3. Step 3: Cross multiply
   20,458.97x = 30,688.42 × 5,667.83
4. Step 4: Simplify right side
   20,458.97x = 173,936,747.53
5. Step 5: Solve for x
   x = 173,936,747.53/20,458.97
6. Step 6: Final answer
   x = 8,501.74