Finding the Fourth Proportional to 31,091.27, 42,905.99 and 16,944.13

Step by Step Solution

1. Step 1: Write the proportion equation
   31,091.27 : 42,905.99 = 16,944.13 : x
2. Step 2: Convert to fraction form
   31,091.27/42,905.99 = 16,944.13/x
3. Step 3: Cross multiply
   31,091.27x = 42,905.99 × 16,944.13
4. Step 4: Simplify right side
   31,091.27x = 727,004,373.09
5. Step 5: Solve for x
   x = 727,004,373.09/31,091.27
6. Step 6: Final answer
   x = 23,382.91