Finding the Fourth Proportional to 298,152.06, 447,435.45 and 192,709.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,152.06 : 447,435.45 = 192,709.50 : x
2. Step 2: Convert to fraction form
   298,152.06/447,435.45 = 192,709.50/x
3. Step 3: Cross multiply
   298,152.06x = 447,435.45 × 192,709.50
4. Step 4: Simplify right side
   298,152.06x = 86,225,061,851.78
5. Step 5: Solve for x
   x = 86,225,061,851.78/298,152.06
6. Step 6: Final answer
   x = 289,198.28