Finding the Fourth Proportional to 269,578.89, 404,155.25 and 134,573.67

Step by Step Solution

1. Step 1: Write the proportion equation
   269,578.89 : 404,155.25 = 134,573.67 : x
2. Step 2: Convert to fraction form
   269,578.89/404,155.25 = 134,573.67/x
3. Step 3: Cross multiply
   269,578.89x = 404,155.25 × 134,573.67
4. Step 4: Simplify right side
   269,578.89x = 54,388,654,569.40
5. Step 5: Solve for x
   x = 54,388,654,569.40/269,578.89
6. Step 6: Final answer
   x = 201,754.13