Finding the Fourth Proportional to 30,947, 42,706.86 and 16,799.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,947 : 42,706.86 = 16,799.96 : x
2. Step 2: Convert to fraction form
   30,947/42,706.86 = 16,799.96/x
3. Step 3: Cross multiply
   30,947x = 42,706.86 × 16,799.96
4. Step 4: Simplify right side
   30,947x = 717,473,539.73
5. Step 5: Solve for x
   x = 717,473,539.73/30,947
6. Step 6: Final answer
   x = 23,183.94