Finding the Fourth Proportional to 30,863.92, 42,592.17 and 16,716.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,863.92 : 42,592.17 = 16,716.82 : x
2. Step 2: Convert to fraction form
   30,863.92/42,592.17 = 16,716.82/x
3. Step 3: Cross multiply
   30,863.92x = 42,592.17 × 16,716.82
4. Step 4: Simplify right side
   30,863.92x = 712,005,639.30
5. Step 5: Solve for x
   x = 712,005,639.30/30,863.92
6. Step 6: Final answer
   x = 23,069.19