Finding the Fourth Proportional to 30,863.88, 42,591.96 and 16,716.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,863.88 : 42,591.96 = 16,716.69 : x
2. Step 2: Convert to fraction form
   30,863.88/42,591.96 = 16,716.69/x
3. Step 3: Cross multiply
   30,863.88x = 42,591.96 × 16,716.69
4. Step 4: Simplify right side
   30,863.88x = 711,996,591.81
5. Step 5: Solve for x
   x = 711,996,591.81/30,863.88
6. Step 6: Final answer
   x = 23,068.93