Finding the Fourth Proportional to 200,978.49, 277,350.78 and 110,340.29

Step by Step Solution

1. Step 1: Write the proportion equation
   200,978.49 : 277,350.78 = 110,340.29 : x
2. Step 2: Convert to fraction form
   200,978.49/277,350.78 = 110,340.29/x
3. Step 3: Cross multiply
   200,978.49x = 277,350.78 × 110,340.29
4. Step 4: Simplify right side
   200,978.49x = 30,602,966,604.08
5. Step 5: Solve for x
   x = 30,602,966,604.08/200,978.49
6. Step 6: Final answer
   x = 152,269.86