Finding the Fourth Proportional to 30,940.50, 42,697.50 and 16,793.88

Step by Step Solution

1. Step 1: Write the proportion equation
   30,940.50 : 42,697.50 = 16,793.88 : x
2. Step 2: Convert to fraction form
   30,940.50/42,697.50 = 16,793.88/x
3. Step 3: Cross multiply
   30,940.50x = 42,697.50 × 16,793.88
4. Step 4: Simplify right side
   30,940.50x = 717,056,691.30
5. Step 5: Solve for x
   x = 717,056,691.30/30,940.50
6. Step 6: Final answer
   x = 23,175.34