Finding the Fourth Proportional to 50,881.50, 70,216.47 and 31,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,881.50 : 70,216.47 = 31,009.50 : x
2. Step 2: Convert to fraction form
   50,881.50/70,216.47 = 31,009.50/x
3. Step 3: Cross multiply
   50,881.50x = 70,216.47 × 31,009.50
4. Step 4: Simplify right side
   50,881.50x = 2,177,377,626.47
5. Step 5: Solve for x
   x = 2,177,377,626.47/50,881.50
6. Step 6: Final answer
   x = 42,793.11