Finding the Fourth Proportional to 239,976.72, 359,060.52 and 143,556.72

Step by Step Solution

1. Step 1: Write the proportion equation
   239,976.72 : 359,060.52 = 143,556.72 : x
2. Step 2: Convert to fraction form
   239,976.72/359,060.52 = 143,556.72/x
3. Step 3: Cross multiply
   239,976.72x = 359,060.52 × 143,556.72
4. Step 4: Simplify right side
   239,976.72x = 51,545,550,532.69
5. Step 5: Solve for x
   x = 51,545,550,532.69/239,976.72
6. Step 6: Final answer
   x = 214,793.96