Finding the Fourth Proportional to 222,663.42, 307,682.37 and 162,128.61

Step by Step Solution

1. Step 1: Write the proportion equation
   222,663.42 : 307,682.37 = 162,128.61 : x
2. Step 2: Convert to fraction form
   222,663.42/307,682.37 = 162,128.61/x
3. Step 3: Cross multiply
   222,663.42x = 307,682.37 × 162,128.61
4. Step 4: Simplify right side
   222,663.42x = 49,884,114,969.61
5. Step 5: Solve for x
   x = 49,884,114,969.61/222,663.42
6. Step 6: Final answer
   x = 224,033.72