Finding the Fourth Proportional to 30,716.15, 42,387.62 and 17,104.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,716.15 : 42,387.62 = 17,104.10 : x
2. Step 2: Convert to fraction form
   30,716.15/42,387.62 = 17,104.10/x
3. Step 3: Cross multiply
   30,716.15x = 42,387.62 × 17,104.10
4. Step 4: Simplify right side
   30,716.15x = 725,001,793.78
5. Step 5: Solve for x
   x = 725,001,793.78/30,716.15
6. Step 6: Final answer
   x = 23,603.28