Finding the Fourth Proportional to 422,204.01, 582,642.41 and 228,613.83

Step by Step Solution

1. Step 1: Write the proportion equation
   422,204.01 : 582,642.41 = 228,613.83 : x
2. Step 2: Convert to fraction form
   422,204.01/582,642.41 = 228,613.83/x
3. Step 3: Cross multiply
   422,204.01x = 582,642.41 × 228,613.83
4. Step 4: Simplify right side
   422,204.01x = 133,200,112,870.53
5. Step 5: Solve for x
   x = 133,200,112,870.53/422,204.01
6. Step 6: Final answer
   x = 315,487.56