Finding the Fourth Proportional to 139,365.14, 192,350.85 and 90,882.89

Step by Step Solution

1. Step 1: Write the proportion equation
   139,365.14 : 192,350.85 = 90,882.89 : x
2. Step 2: Convert to fraction form
   139,365.14/192,350.85 = 90,882.89/x
3. Step 3: Cross multiply
   139,365.14x = 192,350.85 × 90,882.89
4. Step 4: Simplify right side
   139,365.14x = 17,481,401,282.02
5. Step 5: Solve for x
   x = 17,481,401,282.02/139,365.14
6. Step 6: Final answer
   x = 125,435.97