Finding the Fourth Proportional to 31,091.32, 42,906.54 and 16,944.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,091.32 : 42,906.54 = 16,944.76 : x
2. Step 2: Convert to fraction form
   31,091.32/42,906.54 = 16,944.76/x
3. Step 3: Cross multiply
   31,091.32x = 42,906.54 × 16,944.76
4. Step 4: Simplify right side
   31,091.32x = 727,041,022.73
5. Step 5: Solve for x
   x = 727,041,022.73/31,091.32
6. Step 6: Final answer
   x = 23,384.05