Finding the Fourth Proportional to 89,738, 123,841 and 49,996.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,738 : 123,841 = 49,996.56 : x
2. Step 2: Convert to fraction form
   89,738/123,841 = 49,996.56/x
3. Step 3: Cross multiply
   89,738x = 123,841 × 49,996.56
4. Step 4: Simplify right side
   89,738x = 6,191,623,986.96
5. Step 5: Solve for x
   x = 6,191,623,986.96/89,738
6. Step 6: Final answer
   x = 68,996.68