Finding the Fourth Proportional to 30,852.12, 42,575.96 and 16,705

Step by Step Solution

1. Step 1: Write the proportion equation
   30,852.12 : 42,575.96 = 16,705 : x
2. Step 2: Convert to fraction form
   30,852.12/42,575.96 = 16,705/x
3. Step 3: Cross multiply
   30,852.12x = 42,575.96 × 16,705
4. Step 4: Simplify right side
   30,852.12x = 711,231,411.80
5. Step 5: Solve for x
   x = 711,231,411.80/30,852.12
6. Step 6: Final answer
   x = 23,052.92