Finding the Fourth Proportional to 31,101.09, 42,920.67 and 17,674.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,101.09 : 42,920.67 = 17,674.62 : x
2. Step 2: Convert to fraction form
   31,101.09/42,920.67 = 17,674.62/x
3. Step 3: Cross multiply
   31,101.09x = 42,920.67 × 17,674.62
4. Step 4: Simplify right side
   31,101.09x = 758,606,532.40
5. Step 5: Solve for x
   x = 758,606,532.40/31,101.09
6. Step 6: Final answer
   x = 24,391.64