Finding the Fourth Proportional to 300,636.24, 450,938.55 and 100,960.71

Step by Step Solution

1. Step 1: Write the proportion equation
   300,636.24 : 450,938.55 = 100,960.71 : x
2. Step 2: Convert to fraction form
   300,636.24/450,938.55 = 100,960.71/x
3. Step 3: Cross multiply
   300,636.24x = 450,938.55 × 100,960.71
4. Step 4: Simplify right side
   300,636.24x = 45,527,076,174.37
5. Step 5: Solve for x
   x = 45,527,076,174.37/300,636.24
6. Step 6: Final answer
   x = 151,435.76