Finding the Fourth Proportional to 172,116.72, 237,495.96 and 96,660.72

Step by Step Solution

1. Step 1: Write the proportion equation
   172,116.72 : 237,495.96 = 96,660.72 : x
2. Step 2: Convert to fraction form
   172,116.72/237,495.96 = 96,660.72/x
3. Step 3: Cross multiply
   172,116.72x = 237,495.96 × 96,660.72
4. Step 4: Simplify right side
   172,116.72x = 22,956,530,490.69
5. Step 5: Solve for x
   x = 22,956,530,490.69/172,116.72
6. Step 6: Final answer
   x = 133,377.69