Finding the Fourth Proportional to 200,042.56, 276,087.72 and 115,158.88

Step by Step Solution

1. Step 1: Write the proportion equation
   200,042.56 : 276,087.72 = 115,158.88 : x
2. Step 2: Convert to fraction form
   200,042.56/276,087.72 = 115,158.88/x
3. Step 3: Cross multiply
   200,042.56x = 276,087.72 × 115,158.88
4. Step 4: Simplify right side
   200,042.56x = 31,793,952,616.95
5. Step 5: Solve for x
   x = 31,793,952,616.95/200,042.56
6. Step 6: Final answer
   x = 158,935.94