Finding the Fourth Proportional to 20,582.33, 30,864.38 and 7,434.81

Step by Step Solution

1. Step 1: Write the proportion equation
   20,582.33 : 30,864.38 = 7,434.81 : x
2. Step 2: Convert to fraction form
   20,582.33/30,864.38 = 7,434.81/x
3. Step 3: Cross multiply
   20,582.33x = 30,864.38 × 7,434.81
4. Step 4: Simplify right side
   20,582.33x = 229,470,763.89
5. Step 5: Solve for x
   x = 229,470,763.89/20,582.33
6. Step 6: Final answer
   x = 11,148.92