Finding the Fourth Proportional to 30,742.39, 42,426.56 and 17,132.54

Step by Step Solution

1. Step 1: Write the proportion equation
   30,742.39 : 42,426.56 = 17,132.54 : x
2. Step 2: Convert to fraction form
   30,742.39/42,426.56 = 17,132.54/x
3. Step 3: Cross multiply
   30,742.39x = 42,426.56 × 17,132.54
4. Step 4: Simplify right side
   30,742.39x = 726,874,650.60
5. Step 5: Solve for x
   x = 726,874,650.60/30,742.39
6. Step 6: Final answer
   x = 23,644.06