Finding the Fourth Proportional to 308,308.48, 425,456.72 and 172,342.72

Step by Step Solution

1. Step 1: Write the proportion equation
   308,308.48 : 425,456.72 = 172,342.72 : x
2. Step 2: Convert to fraction form
   308,308.48/425,456.72 = 172,342.72/x
3. Step 3: Cross multiply
   308,308.48x = 425,456.72 × 172,342.72
4. Step 4: Simplify right side
   308,308.48x = 73,324,368,367.08
5. Step 5: Solve for x
   x = 73,324,368,367.08/308,308.48
6. Step 6: Final answer
   x = 237,827.93