Finding the Fourth Proportional to 42,885, 64,290.30 and 16,608.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,885 : 64,290.30 = 16,608.84 : x
2. Step 2: Convert to fraction form
   42,885/64,290.30 = 16,608.84/x
3. Step 3: Cross multiply
   42,885x = 64,290.30 × 16,608.84
4. Step 4: Simplify right side
   42,885x = 1,067,787,306.25
5. Step 5: Solve for x
   x = 1,067,787,306.25/42,885
6. Step 6: Final answer
   x = 24,898.85