Finding the Fourth Proportional to 30,719.52, 42,393.10 and 17,291

Step by Step Solution

1. Step 1: Write the proportion equation
   30,719.52 : 42,393.10 = 17,291 : x
2. Step 2: Convert to fraction form
   30,719.52/42,393.10 = 17,291/x
3. Step 3: Cross multiply
   30,719.52x = 42,393.10 × 17,291
4. Step 4: Simplify right side
   30,719.52x = 733,019,092.10
5. Step 5: Solve for x
   x = 733,019,092.10/30,719.52
6. Step 6: Final answer
   x = 23,861.67