Finding the Fourth Proportional to 50,087.72, 69,121.08 and 31,224.92

Step by Step Solution

1. Step 1: Write the proportion equation
   50,087.72 : 69,121.08 = 31,224.92 : x
2. Step 2: Convert to fraction form
   50,087.72/69,121.08 = 31,224.92/x
3. Step 3: Cross multiply
   50,087.72x = 69,121.08 × 31,224.92
4. Step 4: Simplify right side
   50,087.72x = 2,158,300,193.31
5. Step 5: Solve for x
   x = 2,158,300,193.31/50,087.72
6. Step 6: Final answer
   x = 43,090.41