Finding the Fourth Proportional to 400,958.52, 553,322.72 and 222,110.52

Step by Step Solution

1. Step 1: Write the proportion equation
   400,958.52 : 553,322.72 = 222,110.52 : x
2. Step 2: Convert to fraction form
   400,958.52/553,322.72 = 222,110.52/x
3. Step 3: Cross multiply
   400,958.52x = 553,322.72 × 222,110.52
4. Step 4: Simplify right side
   400,958.52x = 122,898,797,067.01
5. Step 5: Solve for x
   x = 122,898,797,067.01/400,958.52
6. Step 6: Final answer
   x = 306,512.50