Finding the Fourth Proportional to 30,799.62, 42,503.28 and 17,371

Step by Step Solution

1. Step 1: Write the proportion equation
   30,799.62 : 42,503.28 = 17,371 : x
2. Step 2: Convert to fraction form
   30,799.62/42,503.28 = 17,371/x
3. Step 3: Cross multiply
   30,799.62x = 42,503.28 × 17,371
4. Step 4: Simplify right side
   30,799.62x = 738,324,476.88
5. Step 5: Solve for x
   x = 738,324,476.88/30,799.62
6. Step 6: Final answer
   x = 23,971.87