Finding the Fourth Proportional to 30,385.96, 41,932.76 and 16,957

Step by Step Solution

1. Step 1: Write the proportion equation
   30,385.96 : 41,932.76 = 16,957 : x
2. Step 2: Convert to fraction form
   30,385.96/41,932.76 = 16,957/x
3. Step 3: Cross multiply
   30,385.96x = 41,932.76 × 16,957
4. Step 4: Simplify right side
   30,385.96x = 711,053,811.32
5. Step 5: Solve for x
   x = 711,053,811.32/30,385.96
6. Step 6: Final answer
   x = 23,400.74