Finding the Fourth Proportional to 315,683.83, 435,636.52 and 172,444.51

Step by Step Solution

1. Step 1: Write the proportion equation
   315,683.83 : 435,636.52 = 172,444.51 : x
2. Step 2: Convert to fraction form
   315,683.83/435,636.52 = 172,444.51/x
3. Step 3: Cross multiply
   315,683.83x = 435,636.52 × 172,444.51
4. Step 4: Simplify right side
   315,683.83x = 75,123,126,229.51
5. Step 5: Solve for x
   x = 75,123,126,229.51/315,683.83
6. Step 6: Final answer
   x = 237,969.51