Finding the Fourth Proportional to 30,456.26, 42,038.54 and 17,712.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,456.26 : 42,038.54 = 17,712.42 : x
2. Step 2: Convert to fraction form
   30,456.26/42,038.54 = 17,712.42/x
3. Step 3: Cross multiply
   30,456.26x = 42,038.54 × 17,712.42
4. Step 4: Simplify right side
   30,456.26x = 744,604,188.10
5. Step 5: Solve for x
   x = 744,604,188.10/30,456.26
6. Step 6: Final answer
   x = 24,448.32