Finding the Fourth Proportional to 383,364.83, 529,045.61 and 222,315.47

Step by Step Solution

1. Step 1: Write the proportion equation
   383,364.83 : 529,045.61 = 222,315.47 : x
2. Step 2: Convert to fraction form
   383,364.83/529,045.61 = 222,315.47/x
3. Step 3: Cross multiply
   383,364.83x = 529,045.61 × 222,315.47
4. Step 4: Simplify right side
   383,364.83x = 117,615,019,681.78
5. Step 5: Solve for x
   x = 117,615,019,681.78/383,364.83
6. Step 6: Final answer
   x = 306,796.59