Finding the Fourth Proportional to 31,091.46, 42,906.14 and 16,944.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,091.46 : 42,906.14 = 16,944.28 : x
2. Step 2: Convert to fraction form
   31,091.46/42,906.14 = 16,944.28/x
3. Step 3: Cross multiply
   31,091.46x = 42,906.14 × 16,944.28
4. Step 4: Simplify right side
   31,091.46x = 727,013,649.88
5. Step 5: Solve for x
   x = 727,013,649.88/31,091.46
6. Step 6: Final answer
   x = 23,383.07