Finding the Fourth Proportional to 200,905.50, 277,262.55 and 111,481.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,905.50 : 277,262.55 = 111,481.50 : x
2. Step 2: Convert to fraction form
   200,905.50/277,262.55 = 111,481.50/x
3. Step 3: Cross multiply
   200,905.50x = 277,262.55 × 111,481.50
4. Step 4: Simplify right side
   200,905.50x = 30,909,644,967.83
5. Step 5: Solve for x
   x = 30,909,644,967.83/200,905.50
6. Step 6: Final answer
   x = 153,851.66