Finding the Fourth Proportional to 20,433.05, 30,641.57 and 7,951.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,433.05 : 30,641.57 = 7,951.42 : x
2. Step 2: Convert to fraction form
   20,433.05/30,641.57 = 7,951.42/x
3. Step 3: Cross multiply
   20,433.05x = 30,641.57 × 7,951.42
4. Step 4: Simplify right side
   20,433.05x = 243,643,992.53
5. Step 5: Solve for x
   x = 243,643,992.53/20,433.05
6. Step 6: Final answer
   x = 11,924.01