Finding the Fourth Proportional to 89,805.37, 123,928.76 and 49,519.12

Step by Step Solution

1. Step 1: Write the proportion equation
   89,805.37 : 123,928.76 = 49,519.12 : x
2. Step 2: Convert to fraction form
   89,805.37/123,928.76 = 49,519.12/x
3. Step 3: Cross multiply
   89,805.37x = 123,928.76 × 49,519.12
4. Step 4: Simplify right side
   89,805.37x = 6,136,843,137.89
5. Step 5: Solve for x
   x = 6,136,843,137.89/89,805.37
6. Step 6: Final answer
   x = 68,334.92