Finding the Fourth Proportional to 200,955, 277,330.86 and 111,531

Step by Step Solution

1. Step 1: Write the proportion equation
   200,955 : 277,330.86 = 111,531 : x
2. Step 2: Convert to fraction form
   200,955/277,330.86 = 111,531/x
3. Step 3: Cross multiply
   200,955x = 277,330.86 × 111,531
4. Step 4: Simplify right side
   200,955x = 30,930,988,146.66
5. Step 5: Solve for x
   x = 30,930,988,146.66/200,955
6. Step 6: Final answer
   x = 153,919.97