Finding the Fourth Proportional to 301,287.89, 451,934.94 and 76,648.43

Step by Step Solution

1. Step 1: Write the proportion equation
   301,287.89 : 451,934.94 = 76,648.43 : x
2. Step 2: Convert to fraction form
   301,287.89/451,934.94 = 76,648.43/x
3. Step 3: Cross multiply
   301,287.89x = 451,934.94 × 76,648.43
4. Step 4: Simplify right side
   301,287.89x = 34,640,101,353.47
5. Step 5: Solve for x
   x = 34,640,101,353.47/301,287.89
6. Step 6: Final answer
   x = 114,973.43