Finding the Fourth Proportional to 383,818.27, 529,674.71 and 222,722.03

Step by Step Solution

1. Step 1: Write the proportion equation
   383,818.27 : 529,674.71 = 222,722.03 : x
2. Step 2: Convert to fraction form
   383,818.27/529,674.71 = 222,722.03/x
3. Step 3: Cross multiply
   383,818.27x = 529,674.71 × 222,722.03
4. Step 4: Simplify right side
   383,818.27x = 117,970,226,650.86
5. Step 5: Solve for x
   x = 117,970,226,650.86/383,818.27
6. Step 6: Final answer
   x = 307,359.59