Finding the Fourth Proportional to 318,812, 439,960.56 and 177,500

Step by Step Solution

1. Step 1: Write the proportion equation
   318,812 : 439,960.56 = 177,500 : x
2. Step 2: Convert to fraction form
   318,812/439,960.56 = 177,500/x
3. Step 3: Cross multiply
   318,812x = 439,960.56 × 177,500
4. Step 4: Simplify right side
   318,812x = 78,092,999,400
5. Step 5: Solve for x
   x = 78,092,999,400/318,812
6. Step 6: Final answer
   x = 244,950