Finding the Fourth Proportional to 50,089.28, 69,128.73 and 31,940.67

Step by Step Solution

1. Step 1: Write the proportion equation
   50,089.28 : 69,128.73 = 31,940.67 : x
2. Step 2: Convert to fraction form
   50,089.28/69,128.73 = 31,940.67/x
3. Step 3: Cross multiply
   50,089.28x = 69,128.73 × 31,940.67
4. Step 4: Simplify right side
   50,089.28x = 2,208,017,952.45
5. Step 5: Solve for x
   x = 2,208,017,952.45/50,089.28
6. Step 6: Final answer
   x = 44,081.65