Finding the Fourth Proportional to 255,286.72, 383,105.04 and 89,074.72

Step by Step Solution

1. Step 1: Write the proportion equation
   255,286.72 : 383,105.04 = 89,074.72 : x
2. Step 2: Convert to fraction form
   255,286.72/383,105.04 = 89,074.72/x
3. Step 3: Cross multiply
   255,286.72x = 383,105.04 × 89,074.72
4. Step 4: Simplify right side
   255,286.72x = 34,124,974,168.59
5. Step 5: Solve for x
   x = 34,124,974,168.59/255,286.72
6. Step 6: Final answer
   x = 133,673.13