Finding the Fourth Proportional to 89,854.94, 123,994.50 and 49,568.78

Step by Step Solution

1. Step 1: Write the proportion equation
   89,854.94 : 123,994.50 = 49,568.78 : x
2. Step 2: Convert to fraction form
   89,854.94/123,994.50 = 49,568.78/x
3. Step 3: Cross multiply
   89,854.94x = 123,994.50 × 49,568.78
4. Step 4: Simplify right side
   89,854.94x = 6,146,256,091.71
5. Step 5: Solve for x
   x = 6,146,256,091.71/89,854.94
6. Step 6: Final answer
   x = 68,401.98