Finding the Fourth Proportional to 144,306.73, 199,014.37 and 90,596.76

Step by Step Solution

1. Step 1: Write the proportion equation
   144,306.73 : 199,014.37 = 90,596.76 : x
2. Step 2: Convert to fraction form
   144,306.73/199,014.37 = 90,596.76/x
3. Step 3: Cross multiply
   144,306.73x = 199,014.37 × 90,596.76
4. Step 4: Simplify right side
   144,306.73x = 18,030,055,667.39
5. Step 5: Solve for x
   x = 18,030,055,667.39/144,306.73
6. Step 6: Final answer
   x = 124,942.58