Finding the Fourth Proportional to 30,819.82, 42,531.33 and 16,672.68

Step by Step Solution

1. Step 1: Write the proportion equation
   30,819.82 : 42,531.33 = 16,672.68 : x
2. Step 2: Convert to fraction form
   30,819.82/42,531.33 = 16,672.68/x
3. Step 3: Cross multiply
   30,819.82x = 42,531.33 × 16,672.68
4. Step 4: Simplify right side
   30,819.82x = 709,111,255.06
5. Step 5: Solve for x
   x = 709,111,255.06/30,819.82
6. Step 6: Final answer
   x = 23,008.29