Finding the Fourth Proportional to 31,093.23, 42,908.81 and 17,665.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,093.23 : 42,908.81 = 17,665.22 : x
2. Step 2: Convert to fraction form
   31,093.23/42,908.81 = 17,665.22/x
3. Step 3: Cross multiply
   31,093.23x = 42,908.81 × 17,665.22
4. Step 4: Simplify right side
   31,093.23x = 757,993,568.59
5. Step 5: Solve for x
   x = 757,993,568.59/31,093.23
6. Step 6: Final answer
   x = 24,378.09