Finding the Fourth Proportional to 20,665.83, 30,994.09 and 5,874.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,665.83 : 30,994.09 = 5,874.42 : x
2. Step 2: Convert to fraction form
   20,665.83/30,994.09 = 5,874.42/x
3. Step 3: Cross multiply
   20,665.83x = 30,994.09 × 5,874.42
4. Step 4: Simplify right side
   20,665.83x = 182,072,287.49
5. Step 5: Solve for x
   x = 182,072,287.49/20,665.83
6. Step 6: Final answer
   x = 8,810.31