Finding the Fourth Proportional to 30,793.20, 42,494.59 and 16,646.04

Step by Step Solution

1. Step 1: Write the proportion equation
   30,793.20 : 42,494.59 = 16,646.04 : x
2. Step 2: Convert to fraction form
   30,793.20/42,494.59 = 16,646.04/x
3. Step 3: Cross multiply
   30,793.20x = 42,494.59 × 16,646.04
4. Step 4: Simplify right side
   30,793.20x = 707,366,561.69
5. Step 5: Solve for x
   x = 707,366,561.69/30,793.20
6. Step 6: Final answer
   x = 22,971.52