Finding the Fourth Proportional to 30,789.27, 42,488.35 and 17,360.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,789.27 : 42,488.35 = 17,360.42 : x
2. Step 2: Convert to fraction form
   30,789.27/42,488.35 = 17,360.42/x
3. Step 3: Cross multiply
   30,789.27x = 42,488.35 × 17,360.42
4. Step 4: Simplify right side
   30,789.27x = 737,615,345.26
5. Step 5: Solve for x
   x = 737,615,345.26/30,789.27
6. Step 6: Final answer
   x = 23,956.90