Finding the Fourth Proportional to 30,757.73, 42,440.54 and 17,142.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,757.73 : 42,440.54 = 17,142.82 : x
2. Step 2: Convert to fraction form
   30,757.73/42,440.54 = 17,142.82/x
3. Step 3: Cross multiply
   30,757.73x = 42,440.54 × 17,142.82
4. Step 4: Simplify right side
   30,757.73x = 727,550,346.11
5. Step 5: Solve for x
   x = 727,550,346.11/30,757.73
6. Step 6: Final answer
   x = 23,654.23