Finding the Fourth Proportional to 89,227.72, 123,140.78 and 50,986.41

Step by Step Solution

1. Step 1: Write the proportion equation
   89,227.72 : 123,140.78 = 50,986.41 : x
2. Step 2: Convert to fraction form
   89,227.72/123,140.78 = 50,986.41/x
3. Step 3: Cross multiply
   89,227.72x = 123,140.78 × 50,986.41
4. Step 4: Simplify right side
   89,227.72x = 6,278,506,296.80
5. Step 5: Solve for x
   x = 6,278,506,296.80/89,227.72
6. Step 6: Final answer
   x = 70,364.98