Finding the Fourth Proportional to 30,575.48, 42,196.55 and 17,149.73

Step by Step Solution

1. Step 1: Write the proportion equation
   30,575.48 : 42,196.55 = 17,149.73 : x
2. Step 2: Convert to fraction form
   30,575.48/42,196.55 = 17,149.73/x
3. Step 3: Cross multiply
   30,575.48x = 42,196.55 × 17,149.73
4. Step 4: Simplify right side
   30,575.48x = 723,659,142.70
5. Step 5: Solve for x
   x = 723,659,142.70/30,575.48
6. Step 6: Final answer
   x = 23,667.96