Finding the Fourth Proportional to 31,092.27, 42,907.37 and 16,945.13

Step by Step Solution

1. Step 1: Write the proportion equation
   31,092.27 : 42,907.37 = 16,945.13 : x
2. Step 2: Convert to fraction form
   31,092.27/42,907.37 = 16,945.13/x
3. Step 3: Cross multiply
   31,092.27x = 42,907.37 × 16,945.13
4. Step 4: Simplify right side
   31,092.27x = 727,070,663.35
5. Step 5: Solve for x
   x = 727,070,663.35/31,092.27
6. Step 6: Final answer
   x = 23,384.29