Finding the Fourth Proportional to 307,716.50, 424,314.02 and 200,086.94

Step by Step Solution

1. Step 1: Write the proportion equation
   307,716.50 : 424,314.02 = 200,086.94 : x
2. Step 2: Convert to fraction form
   307,716.50/424,314.02 = 200,086.94/x
3. Step 3: Cross multiply
   307,716.50x = 424,314.02 × 200,086.94
4. Step 4: Simplify right side
   307,716.50x = 84,899,690,738.89
5. Step 5: Solve for x
   x = 84,899,690,738.89/307,716.50
6. Step 6: Final answer
   x = 275,902.31