Finding the Fourth Proportional to 89,846.55, 123,986.70 and 49,564.17

Step by Step Solution

1. Step 1: Write the proportion equation
   89,846.55 : 123,986.70 = 49,564.17 : x
2. Step 2: Convert to fraction form
   89,846.55/123,986.70 = 49,564.17/x
3. Step 3: Cross multiply
   89,846.55x = 123,986.70 × 49,564.17
4. Step 4: Simplify right side
   89,846.55x = 6,145,297,876.54
5. Step 5: Solve for x
   x = 6,145,297,876.54/89,846.55
6. Step 6: Final answer
   x = 68,397.71