Finding the Fourth Proportional to 222,262.24, 333,289.68 and 128,794.72

Step by Step Solution

1. Step 1: Write the proportion equation
   222,262.24 : 333,289.68 = 128,794.72 : x
2. Step 2: Convert to fraction form
   222,262.24/333,289.68 = 128,794.72/x
3. Step 3: Cross multiply
   222,262.24x = 333,289.68 × 128,794.72
4. Step 4: Simplify right side
   222,262.24x = 42,925,951,014.49
5. Step 5: Solve for x
   x = 42,925,951,014.49/222,262.24
6. Step 6: Final answer
   x = 193,132.00