Finding the Fourth Proportional to 30,456.96, 42,021.12 and 17,026.32

Step by Step Solution

1. Step 1: Write the proportion equation
   30,456.96 : 42,021.12 = 17,026.32 : x
2. Step 2: Convert to fraction form
   30,456.96/42,021.12 = 17,026.32/x
3. Step 3: Cross multiply
   30,456.96x = 42,021.12 × 17,026.32
4. Step 4: Simplify right side
   30,456.96x = 715,465,035.88
5. Step 5: Solve for x
   x = 715,465,035.88/30,456.96
6. Step 6: Final answer
   x = 23,491.02