Finding the Fourth Proportional to 300,185.34, 414,215.19 and 171,140.46

Step by Step Solution

1. Step 1: Write the proportion equation
   300,185.34 : 414,215.19 = 171,140.46 : x
2. Step 2: Convert to fraction form
   300,185.34/414,215.19 = 171,140.46/x
3. Step 3: Cross multiply
   300,185.34x = 414,215.19 × 171,140.46
4. Step 4: Simplify right side
   300,185.34x = 70,888,978,155.59
5. Step 5: Solve for x
   x = 70,888,978,155.59/300,185.34
6. Step 6: Final answer
   x = 236,150.70