Finding the Fourth Proportional to 172,644.15, 238,285.69 and 116,022.72

Step by Step Solution

1. Step 1: Write the proportion equation
   172,644.15 : 238,285.69 = 116,022.72 : x
2. Step 2: Convert to fraction form
   172,644.15/238,285.69 = 116,022.72/x
3. Step 3: Cross multiply
   172,644.15x = 238,285.69 × 116,022.72
4. Step 4: Simplify right side
   172,644.15x = 27,646,553,890.88
5. Step 5: Solve for x
   x = 27,646,553,890.88/172,644.15
6. Step 6: Final answer
   x = 160,136.06