Finding the Fourth Proportional to 30,565.05, 42,179.18 and 16,953

Step by Step Solution

1. Step 1: Write the proportion equation
   30,565.05 : 42,179.18 = 16,953 : x
2. Step 2: Convert to fraction form
   30,565.05/42,179.18 = 16,953/x
3. Step 3: Cross multiply
   30,565.05x = 42,179.18 × 16,953
4. Step 4: Simplify right side
   30,565.05x = 715,063,553.78
5. Step 5: Solve for x
   x = 715,063,553.78/30,565.05
6. Step 6: Final answer
   x = 23,394.81