Finding the Fourth Proportional to 300,111, 449,815.86 and 166,928.28

Step by Step Solution

1. Step 1: Write the proportion equation
   300,111 : 449,815.86 = 166,928.28 : x
2. Step 2: Convert to fraction form
   300,111/449,815.86 = 166,928.28/x
3. Step 3: Cross multiply
   300,111x = 449,815.86 × 166,928.28
4. Step 4: Simplify right side
   300,111x = 75,086,987,826.52
5. Step 5: Solve for x
   x = 75,086,987,826.52/300,111
6. Step 6: Final answer
   x = 250,197.39