Finding the Fourth Proportional to 151,648.76, 209,270.40 and 82,735.76

Step by Step Solution

1. Step 1: Write the proportion equation
   151,648.76 : 209,270.40 = 82,735.76 : x
2. Step 2: Convert to fraction form
   151,648.76/209,270.40 = 82,735.76/x
3. Step 3: Cross multiply
   151,648.76x = 209,270.40 × 82,735.76
4. Step 4: Simplify right side
   151,648.76x = 17,314,145,589.50
5. Step 5: Solve for x
   x = 17,314,145,589.50/151,648.76
6. Step 6: Final answer
   x = 114,172.68