Finding the Fourth Proportional to 89,186.54, 123,072.71 and 50,938.57

Step by Step Solution

1. Step 1: Write the proportion equation
   89,186.54 : 123,072.71 = 50,938.57 : x
2. Step 2: Convert to fraction form
   89,186.54/123,072.71 = 50,938.57/x
3. Step 3: Cross multiply
   89,186.54x = 123,072.71 × 50,938.57
4. Step 4: Simplify right side
   89,186.54x = 6,269,147,853.42
5. Step 5: Solve for x
   x = 6,269,147,853.42/89,186.54
6. Step 6: Final answer
   x = 70,292.53