Finding the Fourth Proportional to 30,714.24, 42,385.20 and 17,976.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,714.24 : 42,385.20 = 17,976.18 : x
2. Step 2: Convert to fraction form
   30,714.24/42,385.20 = 17,976.18/x
3. Step 3: Cross multiply
   30,714.24x = 42,385.20 × 17,976.18
4. Step 4: Simplify right side
   30,714.24x = 761,923,984.54
5. Step 5: Solve for x
   x = 761,923,984.54/30,714.24
6. Step 6: Final answer
   x = 24,806.86