Finding the Fourth Proportional to 123,162.73, 169,880.69 and 75,439.96

Step by Step Solution

1. Step 1: Write the proportion equation
   123,162.73 : 169,880.69 = 75,439.96 : x
2. Step 2: Convert to fraction form
   123,162.73/169,880.69 = 75,439.96/x
3. Step 3: Cross multiply
   123,162.73x = 169,880.69 × 75,439.96
4. Step 4: Simplify right side
   123,162.73x = 12,815,792,222.27
5. Step 5: Solve for x
   x = 12,815,792,222.27/123,162.73
6. Step 6: Final answer
   x = 104,055.77