Finding the Fourth Proportional to 231,971.22, 320,109.57 and 131,369.94

Step by Step Solution

1. Step 1: Write the proportion equation
   231,971.22 : 320,109.57 = 131,369.94 : x
2. Step 2: Convert to fraction form
   231,971.22/320,109.57 = 131,369.94/x
3. Step 3: Cross multiply
   231,971.22x = 320,109.57 × 131,369.94
4. Step 4: Simplify right side
   231,971.22x = 42,052,775,004.33
5. Step 5: Solve for x
   x = 42,052,775,004.33/231,971.22
6. Step 6: Final answer
   x = 181,284.45