Finding the Fourth Proportional to 222,789.45, 307,468.88 and 122,206.89

Step by Step Solution

1. Step 1: Write the proportion equation
   222,789.45 : 307,468.88 = 122,206.89 : x
2. Step 2: Convert to fraction form
   222,789.45/307,468.88 = 122,206.89/x
3. Step 3: Cross multiply
   222,789.45x = 307,468.88 × 122,206.89
4. Step 4: Simplify right side
   222,789.45x = 37,574,816,596.83
5. Step 5: Solve for x
   x = 37,574,816,596.83/222,789.45
6. Step 6: Final answer
   x = 168,656.17