Finding the Fourth Proportional to 30,630.27, 42,269.63 and 17,892.21

Step by Step Solution

1. Step 1: Write the proportion equation
   30,630.27 : 42,269.63 = 17,892.21 : x
2. Step 2: Convert to fraction form
   30,630.27/42,269.63 = 17,892.21/x
3. Step 3: Cross multiply
   30,630.27x = 42,269.63 × 17,892.21
4. Step 4: Simplify right side
   30,630.27x = 756,297,096.58
5. Step 5: Solve for x
   x = 756,297,096.58/30,630.27
6. Step 6: Final answer
   x = 24,691.17