Finding the Fourth Proportional to 172,538.91, 238,048.74 and 97,072.83

Step by Step Solution

1. Step 1: Write the proportion equation
   172,538.91 : 238,048.74 = 97,072.83 : x
2. Step 2: Convert to fraction form
   172,538.91/238,048.74 = 97,072.83/x
3. Step 3: Cross multiply
   172,538.91x = 238,048.74 × 97,072.83
4. Step 4: Simplify right side
   172,538.91x = 23,108,064,869.73
5. Step 5: Solve for x
   x = 23,108,064,869.73/172,538.91
6. Step 6: Final answer
   x = 133,929.59