Finding the Fourth Proportional to 300,801.03, 451,258.49 and 120,900.47

Step by Step Solution

1. Step 1: Write the proportion equation
   300,801.03 : 451,258.49 = 120,900.47 : x
2. Step 2: Convert to fraction form
   300,801.03/451,258.49 = 120,900.47/x
3. Step 3: Cross multiply
   300,801.03x = 451,258.49 × 120,900.47
4. Step 4: Simplify right side
   300,801.03x = 54,557,361,578.45
5. Step 5: Solve for x
   x = 54,557,361,578.45/300,801.03
6. Step 6: Final answer
   x = 181,373.59