Finding the Fourth Proportional to 321,683.69, 482,188.83 and 108,377.89

Step by Step Solution

1. Step 1: Write the proportion equation
   321,683.69 : 482,188.83 = 108,377.89 : x
2. Step 2: Convert to fraction form
   321,683.69/482,188.83 = 108,377.89/x
3. Step 3: Cross multiply
   321,683.69x = 482,188.83 × 108,377.89
4. Step 4: Simplify right side
   321,683.69x = 52,258,606,771.50
5. Step 5: Solve for x
   x = 52,258,606,771.50/321,683.69
6. Step 6: Final answer
   x = 162,453.40