Finding the Fourth Proportional to 311,353, 429,667.62 and 177,217

Step by Step Solution

1. Step 1: Write the proportion equation
   311,353 : 429,667.62 = 177,217 : x
2. Step 2: Convert to fraction form
   311,353/429,667.62 = 177,217/x
3. Step 3: Cross multiply
   311,353x = 429,667.62 × 177,217
4. Step 4: Simplify right side
   311,353x = 76,144,406,613.54
5. Step 5: Solve for x
   x = 76,144,406,613.54/311,353
6. Step 6: Final answer
   x = 244,559.73