Finding the Fourth Proportional to 200,738.31, 277,018.88 and 111,314.31

Step by Step Solution

1. Step 1: Write the proportion equation
   200,738.31 : 277,018.88 = 111,314.31 : x
2. Step 2: Convert to fraction form
   200,738.31/277,018.88 = 111,314.31/x
3. Step 3: Cross multiply
   200,738.31x = 277,018.88 × 111,314.31
4. Step 4: Simplify right side
   200,738.31x = 30,836,165,484.17
5. Step 5: Solve for x
   x = 30,836,165,484.17/200,738.31
6. Step 6: Final answer
   x = 153,613.75