Finding the Fourth Proportional to 20,450.52, 30,661.47 and 7,960.05

Step by Step Solution

1. Step 1: Write the proportion equation
   20,450.52 : 30,661.47 = 7,960.05 : x
2. Step 2: Convert to fraction form
   20,450.52/30,661.47 = 7,960.05/x
3. Step 3: Cross multiply
   20,450.52x = 30,661.47 × 7,960.05
4. Step 4: Simplify right side
   20,450.52x = 244,066,834.27
5. Step 5: Solve for x
   x = 244,066,834.27/20,450.52
6. Step 6: Final answer
   x = 11,934.51