Finding the Fourth Proportional to 30,962.78, 42,687.97 and 22,341.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,962.78 : 42,687.97 = 22,341.72 : x
2. Step 2: Convert to fraction form
   30,962.78/42,687.97 = 22,341.72/x
3. Step 3: Cross multiply
   30,962.78x = 42,687.97 × 22,341.72
4. Step 4: Simplify right side
   30,962.78x = 953,722,934.42
5. Step 5: Solve for x
   x = 953,722,934.42/30,962.78
6. Step 6: Final answer
   x = 30,802.24