Finding the Fourth Proportional to 172,796.89, 238,552.22 and 121,272.54

Step by Step Solution

1. Step 1: Write the proportion equation
   172,796.89 : 238,552.22 = 121,272.54 : x
2. Step 2: Convert to fraction form
   172,796.89/238,552.22 = 121,272.54/x
3. Step 3: Cross multiply
   172,796.89x = 238,552.22 × 121,272.54
4. Step 4: Simplify right side
   172,796.89x = 28,929,833,642.04
5. Step 5: Solve for x
   x = 28,929,833,642.04/172,796.89
6. Step 6: Final answer
   x = 167,421.03