Finding the Fourth Proportional to 30,714.49, 42,388.14 and 17,287.03

Step by Step Solution

1. Step 1: Write the proportion equation
   30,714.49 : 42,388.14 = 17,287.03 : x
2. Step 2: Convert to fraction form
   30,714.49/42,388.14 = 17,287.03/x
3. Step 3: Cross multiply
   30,714.49x = 42,388.14 × 17,287.03
4. Step 4: Simplify right side
   30,714.49x = 732,765,047.82
5. Step 5: Solve for x
   x = 732,765,047.82/30,714.49
6. Step 6: Final answer
   x = 23,857.31