Finding the Fourth Proportional to 300,731.35, 451,138.49 and 101,067.21

Step by Step Solution

1. Step 1: Write the proportion equation
   300,731.35 : 451,138.49 = 101,067.21 : x
2. Step 2: Convert to fraction form
   300,731.35/451,138.49 = 101,067.21/x
3. Step 3: Cross multiply
   300,731.35x = 451,138.49 × 101,067.21
4. Step 4: Simplify right side
   300,731.35x = 45,595,308,002.58
5. Step 5: Solve for x
   x = 45,595,308,002.58/300,731.35
6. Step 6: Final answer
   x = 151,614.75