Finding the Fourth Proportional to 300,886.48, 451,359.69 and 111,397.51

Step by Step Solution

1. Step 1: Write the proportion equation
   300,886.48 : 451,359.69 = 111,397.51 : x
2. Step 2: Convert to fraction form
   300,886.48/451,359.69 = 111,397.51/x
3. Step 3: Cross multiply
   300,886.48x = 451,359.69 × 111,397.51
4. Step 4: Simplify right side
   300,886.48x = 50,280,345,580.37
5. Step 5: Solve for x
   x = 50,280,345,580.37/300,886.48
6. Step 6: Final answer
   x = 167,107.36