Finding the Fourth Proportional to 35,605.38, 49,137.50 and 19,691.31

Step by Step Solution

1. Step 1: Write the proportion equation
   35,605.38 : 49,137.50 = 19,691.31 : x
2. Step 2: Convert to fraction form
   35,605.38/49,137.50 = 19,691.31/x
3. Step 3: Cross multiply
   35,605.38x = 49,137.50 × 19,691.31
4. Step 4: Simplify right side
   35,605.38x = 967,581,646.67
5. Step 5: Solve for x
   x = 967,581,646.67/35,605.38
6. Step 6: Final answer
   x = 27,175.15