Finding the Fourth Proportional to 281,131.78, 387,923.61 and 167,930.50

Step by Step Solution

1. Step 1: Write the proportion equation
   281,131.78 : 387,923.61 = 167,930.50 : x
2. Step 2: Convert to fraction form
   281,131.78/387,923.61 = 167,930.50/x
3. Step 3: Cross multiply
   281,131.78x = 387,923.61 × 167,930.50
4. Step 4: Simplify right side
   281,131.78x = 65,144,205,789.11
5. Step 5: Solve for x
   x = 65,144,205,789.11/281,131.78
6. Step 6: Final answer
   x = 231,721.24