Finding the Fourth Proportional to 300,938.00, 451,416.78 and 111,446.15

Step by Step Solution

1. Step 1: Write the proportion equation
   300,938.00 : 451,416.78 = 111,446.15 : x
2. Step 2: Convert to fraction form
   300,938.00/451,416.78 = 111,446.15/x
3. Step 3: Cross multiply
   300,938.00x = 451,416.78 × 111,446.15
4. Step 4: Simplify right side
   300,938.00x = 50,308,659,919.31
5. Step 5: Solve for x
   x = 50,308,659,919.31/300,938.00
6. Step 6: Final answer
   x = 167,172.84