Finding the Fourth Proportional to 150,641.58, 207,885.30 and 82,659

Step by Step Solution

1. Step 1: Write the proportion equation
   150,641.58 : 207,885.30 = 82,659 : x
2. Step 2: Convert to fraction form
   150,641.58/207,885.30 = 82,659/x
3. Step 3: Cross multiply
   150,641.58x = 207,885.30 × 82,659
4. Step 4: Simplify right side
   150,641.58x = 17,183,591,012.70
5. Step 5: Solve for x
   x = 17,183,591,012.70/150,641.58
6. Step 6: Final answer
   x = 114,069.38