Finding the Fourth Proportional to 30,714.21, 42,391.41 and 19,234.46

Step by Step Solution

1. Step 1: Write the proportion equation
   30,714.21 : 42,391.41 = 19,234.46 : x
2. Step 2: Convert to fraction form
   30,714.21/42,391.41 = 19,234.46/x
3. Step 3: Cross multiply
   30,714.21x = 42,391.41 × 19,234.46
4. Step 4: Simplify right side
   30,714.21x = 815,375,668.03
5. Step 5: Solve for x
   x = 815,375,668.03/30,714.21
6. Step 6: Final answer
   x = 26,547.18