Finding the Fourth Proportional to 89,680.96, 123,759.66 and 49,393.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,680.96 : 123,759.66 = 49,393.72 : x
2. Step 2: Convert to fraction form
   89,680.96/123,759.66 = 49,393.72/x
3. Step 3: Cross multiply
   89,680.96x = 123,759.66 × 49,393.72
4. Step 4: Simplify right side
   89,680.96x = 6,112,949,993.34
5. Step 5: Solve for x
   x = 6,112,949,993.34/89,680.96
6. Step 6: Final answer
   x = 68,163.30