Finding the Fourth Proportional to 31,100.72, 42,920.16 and 17,674.26

Step by Step Solution

1. Step 1: Write the proportion equation
   31,100.72 : 42,920.16 = 17,674.26 : x
2. Step 2: Convert to fraction form
   31,100.72/42,920.16 = 17,674.26/x
3. Step 3: Cross multiply
   31,100.72x = 42,920.16 × 17,674.26
4. Step 4: Simplify right side
   31,100.72x = 758,582,067.08
5. Step 5: Solve for x
   x = 758,582,067.08/31,100.72
6. Step 6: Final answer
   x = 24,391.14