Finding the Fourth Proportional to 31,996.42, 48,008.22 and 12,272.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,996.42 : 48,008.22 = 12,272.38 : x
2. Step 2: Convert to fraction form
   31,996.42/48,008.22 = 12,272.38/x
3. Step 3: Cross multiply
   31,996.42x = 48,008.22 × 12,272.38
4. Step 4: Simplify right side
   31,996.42x = 589,175,118.96
5. Step 5: Solve for x
   x = 589,175,118.96/31,996.42
6. Step 6: Final answer
   x = 18,413.78