Finding the Fourth Proportional to 200,905, 277,261.86 and 111,481

Step by Step Solution

1. Step 1: Write the proportion equation
   200,905 : 277,261.86 = 111,481 : x
2. Step 2: Convert to fraction form
   200,905/277,261.86 = 111,481/x
3. Step 3: Cross multiply
   200,905x = 277,261.86 × 111,481
4. Step 4: Simplify right side
   200,905x = 30,909,429,414.66
5. Step 5: Solve for x
   x = 30,909,429,414.66/200,905
6. Step 6: Final answer
   x = 153,850.97