Finding the Fourth Proportional to 20,383.69, 30,574.16 and 5,591.37

Step by Step Solution

1. Step 1: Write the proportion equation
   20,383.69 : 30,574.16 = 5,591.37 : x
2. Step 2: Convert to fraction form
   20,383.69/30,574.16 = 5,591.37/x
3. Step 3: Cross multiply
   20,383.69x = 30,574.16 × 5,591.37
4. Step 4: Simplify right side
   20,383.69x = 170,951,408.13
5. Step 5: Solve for x
   x = 170,951,408.13/20,383.69
6. Step 6: Final answer
   x = 8,386.68