Finding the Fourth Proportional to 317,097.69, 475,012.82 and 190,668.72

Step by Step Solution

1. Step 1: Write the proportion equation
   317,097.69 : 475,012.82 = 190,668.72 : x
2. Step 2: Convert to fraction form
   317,097.69/475,012.82 = 190,668.72/x
3. Step 3: Cross multiply
   317,097.69x = 475,012.82 × 190,668.72
4. Step 4: Simplify right side
   317,097.69x = 90,570,085,419.65
5. Step 5: Solve for x
   x = 90,570,085,419.65/317,097.69
6. Step 6: Final answer
   x = 285,622.03