Finding the Fourth Proportional to 300,723.18, 449,838.18 and 229,103.94

Step by Step Solution

1. Step 1: Write the proportion equation
   300,723.18 : 449,838.18 = 229,103.94 : x
2. Step 2: Convert to fraction form
   300,723.18/449,838.18 = 229,103.94/x
3. Step 3: Cross multiply
   300,723.18x = 449,838.18 × 229,103.94
4. Step 4: Simplify right side
   300,723.18x = 103,059,699,400.43
5. Step 5: Solve for x
   x = 103,059,699,400.43/300,723.18
6. Step 6: Final answer
   x = 342,706.20