Finding the Fourth Proportional to 298,447.38, 447,826.59 and 132,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,447.38 : 447,826.59 = 132,196.50 : x
2. Step 2: Convert to fraction form
   298,447.38/447,826.59 = 132,196.50/x
3. Step 3: Cross multiply
   298,447.38x = 447,826.59 × 132,196.50
4. Step 4: Simplify right side
   298,447.38x = 59,201,107,804.94
5. Step 5: Solve for x
   x = 59,201,107,804.94/298,447.38
6. Step 6: Final answer
   x = 198,363.64