Finding the Fourth Proportional to 30,508.38, 42,101.37 and 17,079.57

Step by Step Solution

1. Step 1: Write the proportion equation
   30,508.38 : 42,101.37 = 17,079.57 : x
2. Step 2: Convert to fraction form
   30,508.38/42,101.37 = 17,079.57/x
3. Step 3: Cross multiply
   30,508.38x = 42,101.37 × 17,079.57
4. Step 4: Simplify right side
   30,508.38x = 719,073,296.01
5. Step 5: Solve for x
   x = 719,073,296.01/30,508.38
6. Step 6: Final answer
   x = 23,569.70