Finding the Fourth Proportional to 31,092.82, 42,908.07 and 16,945.66

Step by Step Solution

1. Step 1: Write the proportion equation
   31,092.82 : 42,908.07 = 16,945.66 : x
2. Step 2: Convert to fraction form
   31,092.82/42,908.07 = 16,945.66/x
3. Step 3: Cross multiply
   31,092.82x = 42,908.07 × 16,945.66
4. Step 4: Simplify right side
   31,092.82x = 727,105,565.48
5. Step 5: Solve for x
   x = 727,105,565.48/31,092.82
6. Step 6: Final answer
   x = 23,385.00