Finding the Fourth Proportional to 107,990.42, 162,016.71 and 33,121.55

Step by Step Solution

1. Step 1: Write the proportion equation
   107,990.42 : 162,016.71 = 33,121.55 : x
2. Step 2: Convert to fraction form
   107,990.42/162,016.71 = 33,121.55/x
3. Step 3: Cross multiply
   107,990.42x = 162,016.71 × 33,121.55
4. Step 4: Simplify right side
   107,990.42x = 5,366,243,751.02
5. Step 5: Solve for x
   x = 5,366,243,751.02/107,990.42
6. Step 6: Final answer
   x = 49,691.85