Finding the Fourth Proportional to 172,538.94, 238,097.89 and 97,072.86

Step by Step Solution

1. Step 1: Write the proportion equation
   172,538.94 : 238,097.89 = 97,072.86 : x
2. Step 2: Convert to fraction form
   172,538.94/238,097.89 = 97,072.86/x
3. Step 3: Cross multiply
   172,538.94x = 238,097.89 × 97,072.86
4. Step 4: Simplify right side
   172,538.94x = 23,112,843,142.27
5. Step 5: Solve for x
   x = 23,112,843,142.27/172,538.94
6. Step 6: Final answer
   x = 133,957.26