Finding the Fourth Proportional to 150,496.78, 207,686.14 and 82,514.78

Step by Step Solution

1. Step 1: Write the proportion equation
   150,496.78 : 207,686.14 = 82,514.78 : x
2. Step 2: Convert to fraction form
   150,496.78/207,686.14 = 82,514.78/x
3. Step 3: Cross multiply
   150,496.78x = 207,686.14 × 82,514.78
4. Step 4: Simplify right side
   150,496.78x = 17,137,176,151.15
5. Step 5: Solve for x
   x = 17,137,176,151.15/150,496.78
6. Step 6: Final answer
   x = 113,870.72