Finding the Fourth Proportional to 367,057.27, 550,786.58 and 142,426.56

Step by Step Solution

1. Step 1: Write the proportion equation
   367,057.27 : 550,786.58 = 142,426.56 : x
2. Step 2: Convert to fraction form
   367,057.27/550,786.58 = 142,426.56/x
3. Step 3: Cross multiply
   367,057.27x = 550,786.58 × 142,426.56
4. Step 4: Simplify right side
   367,057.27x = 78,446,637,883.56
5. Step 5: Solve for x
   x = 78,446,637,883.56/367,057.27
6. Step 6: Final answer
   x = 213,717.71