Finding the Fourth Proportional to 30,498.68, 42,089.50 and 16,886.73

Step by Step Solution

1. Step 1: Write the proportion equation
   30,498.68 : 42,089.50 = 16,886.73 : x
2. Step 2: Convert to fraction form
   30,498.68/42,089.50 = 16,886.73/x
3. Step 3: Cross multiply
   30,498.68x = 42,089.50 × 16,886.73
4. Step 4: Simplify right side
   30,498.68x = 710,753,727.45
5. Step 5: Solve for x
   x = 710,753,727.45/30,498.68
6. Step 6: Final answer
   x = 23,304.41