Finding the Fourth Proportional to 31,067.86, 42,874.14 and 17,638.84

Step by Step Solution

1. Step 1: Write the proportion equation
   31,067.86 : 42,874.14 = 17,638.84 : x
2. Step 2: Convert to fraction form
   31,067.86/42,874.14 = 17,638.84/x
3. Step 3: Cross multiply
   31,067.86x = 42,874.14 × 17,638.84
4. Step 4: Simplify right side
   31,067.86x = 756,250,095.60
5. Step 5: Solve for x
   x = 756,250,095.60/31,067.86
6. Step 6: Final answer
   x = 24,341.88