Finding the Fourth Proportional to 447,498.54, 671,087.97 and 147,923.82

Step by Step Solution

1. Step 1: Write the proportion equation
   447,498.54 : 671,087.97 = 147,923.82 : x
2. Step 2: Convert to fraction form
   447,498.54/671,087.97 = 147,923.82/x
3. Step 3: Cross multiply
   447,498.54x = 671,087.97 × 147,923.82
4. Step 4: Simplify right side
   447,498.54x = 99,269,896,078.45
5. Step 5: Solve for x
   x = 99,269,896,078.45/447,498.54
6. Step 6: Final answer
   x = 221,832.89