Finding the Fourth Proportional to 123,727.46, 170,747.67 and 72,730.83

Step by Step Solution

1. Step 1: Write the proportion equation
   123,727.46 : 170,747.67 = 72,730.83 : x
2. Step 2: Convert to fraction form
   123,727.46/170,747.67 = 72,730.83/x
3. Step 3: Cross multiply
   123,727.46x = 170,747.67 × 72,730.83
4. Step 4: Simplify right side
   123,727.46x = 12,418,619,759.67
5. Step 5: Solve for x
   x = 12,418,619,759.67/123,727.46
6. Step 6: Final answer
   x = 100,370.77