Finding the Fourth Proportional to 89,065.68, 122,912.04 and 48,778.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,065.68 : 122,912.04 = 48,778.72 : x
2. Step 2: Convert to fraction form
   89,065.68/122,912.04 = 48,778.72/x
3. Step 3: Cross multiply
   89,065.68x = 122,912.04 × 48,778.72
4. Step 4: Simplify right side
   89,065.68x = 5,995,491,983.79
5. Step 5: Solve for x
   x = 5,995,491,983.79/89,065.68
6. Step 6: Final answer
   x = 67,315.40