Finding the Fourth Proportional to 30,443.97, 42,009.87 and 17,013.36

Step by Step Solution

1. Step 1: Write the proportion equation
   30,443.97 : 42,009.87 = 17,013.36 : x
2. Step 2: Convert to fraction form
   30,443.97/42,009.87 = 17,013.36/x
3. Step 3: Cross multiply
   30,443.97x = 42,009.87 × 17,013.36
4. Step 4: Simplify right side
   30,443.97x = 714,729,041.86
5. Step 5: Solve for x
   x = 714,729,041.86/30,443.97
6. Step 6: Final answer
   x = 23,476.87