Finding the Fourth Proportional to 30,738.28, 42,419.54 and 17,127.24

Step by Step Solution

1. Step 1: Write the proportion equation
   30,738.28 : 42,419.54 = 17,127.24 : x
2. Step 2: Convert to fraction form
   30,738.28/42,419.54 = 17,127.24/x
3. Step 3: Cross multiply
   30,738.28x = 42,419.54 × 17,127.24
4. Step 4: Simplify right side
   30,738.28x = 726,529,597.15
5. Step 5: Solve for x
   x = 726,529,597.15/30,738.28
6. Step 6: Final answer
   x = 23,635.99