Finding the Fourth Proportional to 150,939.27, 208,297.31 and 82,957.40

Step by Step Solution

1. Step 1: Write the proportion equation
   150,939.27 : 208,297.31 = 82,957.40 : x
2. Step 2: Convert to fraction form
   150,939.27/208,297.31 = 82,957.40/x
3. Step 3: Cross multiply
   150,939.27x = 208,297.31 × 82,957.40
4. Step 4: Simplify right side
   150,939.27x = 17,279,803,264.59
5. Step 5: Solve for x
   x = 17,279,803,264.59/150,939.27
6. Step 6: Final answer
   x = 114,481.83