Finding the Fourth Proportional to 328,805.72, 453,751.89 and 177,902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   328,805.72 : 453,751.89 = 177,902.72 : x
2. Step 2: Convert to fraction form
   328,805.72/453,751.89 = 177,902.72/x
3. Step 3: Cross multiply
   328,805.72x = 453,751.89 × 177,902.72
4. Step 4: Simplify right side
   328,805.72x = 80,723,696,570.52
5. Step 5: Solve for x
   x = 80,723,696,570.52/328,805.72
6. Step 6: Final answer
   x = 245,505.75