Finding the Fourth Proportional to 89,674.10, 123,745.38 and 49,380.20

Step by Step Solution

1. Step 1: Write the proportion equation
   89,674.10 : 123,745.38 = 49,380.20 : x
2. Step 2: Convert to fraction form
   89,674.10/123,745.38 = 49,380.20/x
3. Step 3: Cross multiply
   89,674.10x = 123,745.38 × 49,380.20
4. Step 4: Simplify right side
   89,674.10x = 6,110,571,613.48
5. Step 5: Solve for x
   x = 6,110,571,613.48/89,674.10
6. Step 6: Final answer
   x = 68,141.99