Finding the Fourth Proportional to 322,976.27, 445,706.73 and 200,423.06

Step by Step Solution

1. Step 1: Write the proportion equation
   322,976.27 : 445,706.73 = 200,423.06 : x
2. Step 2: Convert to fraction form
   322,976.27/445,706.73 = 200,423.06/x
3. Step 3: Cross multiply
   322,976.27x = 445,706.73 × 200,423.06
4. Step 4: Simplify right side
   322,976.27x = 89,329,905,568.37
5. Step 5: Solve for x
   x = 89,329,905,568.37/322,976.27
6. Step 6: Final answer
   x = 276,583.49