Finding the Fourth Proportional to 300,529.18, 451,022.28 and 111,168.64

Step by Step Solution

1. Step 1: Write the proportion equation
   300,529.18 : 451,022.28 = 111,168.64 : x
2. Step 2: Convert to fraction form
   300,529.18/451,022.28 = 111,168.64/x
3. Step 3: Cross multiply
   300,529.18x = 451,022.28 × 111,168.64
4. Step 4: Simplify right side
   300,529.18x = 50,139,533,477.30
5. Step 5: Solve for x
   x = 50,139,533,477.30/300,529.18
6. Step 6: Final answer
   x = 166,837.49