Finding the Fourth Proportional to 150,015.18, 207,020.43 and 82,947.18

Step by Step Solution

1. Step 1: Write the proportion equation
   150,015.18 : 207,020.43 = 82,947.18 : x
2. Step 2: Convert to fraction form
   150,015.18/207,020.43 = 82,947.18/x
3. Step 3: Cross multiply
   150,015.18x = 207,020.43 × 82,947.18
4. Step 4: Simplify right side
   150,015.18x = 17,171,760,870.89
5. Step 5: Solve for x
   x = 17,171,760,870.89/150,015.18
6. Step 6: Final answer
   x = 114,466.82