Finding the Fourth Proportional to 218,964.72, 302,171.52 and 118,362.72

Step by Step Solution

1. Step 1: Write the proportion equation
   218,964.72 : 302,171.52 = 118,362.72 : x
2. Step 2: Convert to fraction form
   218,964.72/302,171.52 = 118,362.72/x
3. Step 3: Cross multiply
   218,964.72x = 302,171.52 × 118,362.72
4. Step 4: Simplify right side
   218,964.72x = 35,765,843,013.73
5. Step 5: Solve for x
   x = 35,765,843,013.73/218,964.72
6. Step 6: Final answer
   x = 163,340.67