Finding the Fourth Proportional to 31,118.22, 42,951.51 and 17,690.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,118.22 : 42,951.51 = 17,690.04 : x
2. Step 2: Convert to fraction form
   31,118.22/42,951.51 = 17,690.04/x
3. Step 3: Cross multiply
   31,118.22x = 42,951.51 × 17,690.04
4. Step 4: Simplify right side
   31,118.22x = 759,813,929.96
5. Step 5: Solve for x
   x = 759,813,929.96/31,118.22
6. Step 6: Final answer
   x = 24,417.01