Finding the Fourth Proportional to 150,630.50, 207,872.02 and 82,643.16

Step by Step Solution

1. Step 1: Write the proportion equation
   150,630.50 : 207,872.02 = 82,643.16 : x
2. Step 2: Convert to fraction form
   150,630.50/207,872.02 = 82,643.16/x
3. Step 3: Cross multiply
   150,630.50x = 207,872.02 × 82,643.16
4. Step 4: Simplify right side
   150,630.50x = 17,179,200,608.38
5. Step 5: Solve for x
   x = 17,179,200,608.38/150,630.50
6. Step 6: Final answer
   x = 114,048.62