Finding the Fourth Proportional to 300,774, 449,914.59 and 229,155

Step by Step Solution

1. Step 1: Write the proportion equation
   300,774 : 449,914.59 = 229,155 : x
2. Step 2: Convert to fraction form
   300,774/449,914.59 = 229,155/x
3. Step 3: Cross multiply
   300,774x = 449,914.59 × 229,155
4. Step 4: Simplify right side
   300,774x = 103,100,177,871.45
5. Step 5: Solve for x
   x = 103,100,177,871.45/300,774
6. Step 6: Final answer
   x = 342,782.88