Finding the Fourth Proportional to 236,362.82, 326,185.25 and 128,936.79

Step by Step Solution

1. Step 1: Write the proportion equation
   236,362.82 : 326,185.25 = 128,936.79 : x
2. Step 2: Convert to fraction form
   236,362.82/326,185.25 = 128,936.79/x
3. Step 3: Cross multiply
   236,362.82x = 326,185.25 × 128,936.79
4. Step 4: Simplify right side
   236,362.82x = 42,057,278,435.66
5. Step 5: Solve for x
   x = 42,057,278,435.66/236,362.82
6. Step 6: Final answer
   x = 177,935.26