Finding the Fourth Proportional to 222,540.42, 307,105.85 and 120,566.58

Step by Step Solution

1. Step 1: Write the proportion equation
   222,540.42 : 307,105.85 = 120,566.58 : x
2. Step 2: Convert to fraction form
   222,540.42/307,105.85 = 120,566.58/x
3. Step 3: Cross multiply
   222,540.42x = 307,105.85 × 120,566.58
4. Step 4: Simplify right side
   222,540.42x = 37,026,702,333.91
5. Step 5: Solve for x
   x = 37,026,702,333.91/222,540.42
6. Step 6: Final answer
   x = 166,381.92