Finding the Fourth Proportional to 30,819.83, 42,521.36 and 17,205.62

Step by Step Solution

1. Step 1: Write the proportion equation
   30,819.83 : 42,521.36 = 17,205.62 : x
2. Step 2: Convert to fraction form
   30,819.83/42,521.36 = 17,205.62/x
3. Step 3: Cross multiply
   30,819.83x = 42,521.36 × 17,205.62
4. Step 4: Simplify right side
   30,819.83x = 731,606,063.41
5. Step 5: Solve for x
   x = 731,606,063.41/30,819.83
6. Step 6: Final answer
   x = 23,738.16