Finding the Fourth Proportional to 167,513.81, 231,171.31 and 91,034.42

Step by Step Solution

1. Step 1: Write the proportion equation
   167,513.81 : 231,171.31 = 91,034.42 : x
2. Step 2: Convert to fraction form
   167,513.81/231,171.31 = 91,034.42/x
3. Step 3: Cross multiply
   167,513.81x = 231,171.31 × 91,034.42
4. Step 4: Simplify right side
   167,513.81x = 21,044,545,093.39
5. Step 5: Solve for x
   x = 21,044,545,093.39/167,513.81
6. Step 6: Final answer
   x = 125,628.72