Finding the Fourth Proportional to 30,766.42, 42,433.50 and 22,269.79

Step by Step Solution

1. Step 1: Write the proportion equation
   30,766.42 : 42,433.50 = 22,269.79 : x
2. Step 2: Convert to fraction form
   30,766.42/42,433.50 = 22,269.79/x
3. Step 3: Cross multiply
   30,766.42x = 42,433.50 × 22,269.79
4. Step 4: Simplify right side
   30,766.42x = 944,985,133.97
5. Step 5: Solve for x
   x = 944,985,133.97/30,766.42
6. Step 6: Final answer
   x = 30,714.82