Finding the Fourth Proportional to 172,123.40, 237,456.62 and 107,480.42

Step by Step Solution

1. Step 1: Write the proportion equation
   172,123.40 : 237,456.62 = 107,480.42 : x
2. Step 2: Convert to fraction form
   172,123.40/237,456.62 = 107,480.42/x
3. Step 3: Cross multiply
   172,123.40x = 237,456.62 × 107,480.42
4. Step 4: Simplify right side
   172,123.40x = 25,521,935,524.70
5. Step 5: Solve for x
   x = 25,521,935,524.70/172,123.40
6. Step 6: Final answer
   x = 148,276.97