Finding the Fourth Proportional to 353,601.50, 487,968.57 and 192,456.72

Step by Step Solution

1. Step 1: Write the proportion equation
   353,601.50 : 487,968.57 = 192,456.72 : x
2. Step 2: Convert to fraction form
   353,601.50/487,968.57 = 192,456.72/x
3. Step 3: Cross multiply
   353,601.50x = 487,968.57 × 192,456.72
4. Step 4: Simplify right side
   353,601.50x = 93,912,830,445.29
5. Step 5: Solve for x
   x = 93,912,830,445.29/353,601.50
6. Step 6: Final answer
   x = 265,589.46