Finding the Fourth Proportional to 30,699.48, 42,364.86 and 17,270.73

Step by Step Solution

1. Step 1: Write the proportion equation
   30,699.48 : 42,364.86 = 17,270.73 : x
2. Step 2: Convert to fraction form
   30,699.48/42,364.86 = 17,270.73/x
3. Step 3: Cross multiply
   30,699.48x = 42,364.86 × 17,270.73
4. Step 4: Simplify right side
   30,699.48x = 731,672,058.55
5. Step 5: Solve for x
   x = 731,672,058.55/30,699.48
6. Step 6: Final answer
   x = 23,833.37