Finding the Fourth Proportional to 150,212.78, 207,290.43 and 82,227.98

Step by Step Solution

1. Step 1: Write the proportion equation
   150,212.78 : 207,290.43 = 82,227.98 : x
2. Step 2: Convert to fraction form
   150,212.78/207,290.43 = 82,227.98/x
3. Step 3: Cross multiply
   150,212.78x = 207,290.43 × 82,227.98
4. Step 4: Simplify right side
   150,212.78x = 17,045,073,332.23
5. Step 5: Solve for x
   x = 17,045,073,332.23/150,212.78
6. Step 6: Final answer
   x = 113,472.86