Finding the Fourth Proportional to 150,048, 207,072.72 and 82,980

Step by Step Solution

1. Step 1: Write the proportion equation
   150,048 : 207,072.72 = 82,980 : x
2. Step 2: Convert to fraction form
   150,048/207,072.72 = 82,980/x
3. Step 3: Cross multiply
   150,048x = 207,072.72 × 82,980
4. Step 4: Simplify right side
   150,048x = 17,182,894,305.60
5. Step 5: Solve for x
   x = 17,182,894,305.60/150,048
6. Step 6: Final answer
   x = 114,515.98