Finding the Fourth Proportional to 395,477.35, 593,216.82 and 142,936.18

Step by Step Solution

1. Step 1: Write the proportion equation
   395,477.35 : 593,216.82 = 142,936.18 : x
2. Step 2: Convert to fraction form
   395,477.35/593,216.82 = 142,936.18/x
3. Step 3: Cross multiply
   395,477.35x = 593,216.82 × 142,936.18
4. Step 4: Simplify right side
   395,477.35x = 84,792,146,162.55
5. Step 5: Solve for x
   x = 84,792,146,162.55/395,477.35
6. Step 6: Final answer
   x = 214,404.56