Finding the Fourth Proportional to 200,727.91, 301,142.46 and 141,678.91

Step by Step Solution

1. Step 1: Write the proportion equation
   200,727.91 : 301,142.46 = 141,678.91 : x
2. Step 2: Convert to fraction form
   200,727.91/301,142.46 = 141,678.91/x
3. Step 3: Cross multiply
   200,727.91x = 301,142.46 × 141,678.91
4. Step 4: Simplify right side
   200,727.91x = 42,665,535,487.52
5. Step 5: Solve for x
   x = 42,665,535,487.52/200,727.91
6. Step 6: Final answer
   x = 212,554.08