Finding the Fourth Proportional to 89,449.29, 123,440.06 and 49,162.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,449.29 : 123,440.06 = 49,162.72 : x
2. Step 2: Convert to fraction form
   89,449.29/123,440.06 = 49,162.72/x
3. Step 3: Cross multiply
   89,449.29x = 123,440.06 × 49,162.72
4. Step 4: Simplify right side
   89,449.29x = 6,068,649,106.56
5. Step 5: Solve for x
   x = 6,068,649,106.56/89,449.29
6. Step 6: Final answer
   x = 67,844.58