Finding the Fourth Proportional to 30,967.04, 42,734.28 and 16,819.99

Step by Step Solution

1. Step 1: Write the proportion equation
   30,967.04 : 42,734.28 = 16,819.99 : x
2. Step 2: Convert to fraction form
   30,967.04/42,734.28 = 16,819.99/x
3. Step 3: Cross multiply
   30,967.04x = 42,734.28 × 16,819.99
4. Step 4: Simplify right side
   30,967.04x = 718,790,118.50
5. Step 5: Solve for x
   x = 718,790,118.50/30,967.04
6. Step 6: Final answer
   x = 23,211.46