Finding the Fourth Proportional to 20,662.83, 30,989.59 and 5,871.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,662.83 : 30,989.59 = 5,871.42 : x
2. Step 2: Convert to fraction form
   20,662.83/30,989.59 = 5,871.42/x
3. Step 3: Cross multiply
   20,662.83x = 30,989.59 × 5,871.42
4. Step 4: Simplify right side
   20,662.83x = 181,952,883.84
5. Step 5: Solve for x
   x = 181,952,883.84/20,662.83
6. Step 6: Final answer
   x = 8,805.81