Finding the Fourth Proportional to 445,086.72, 667,632.96 and 112,662.72

Step by Step Solution

1. Step 1: Write the proportion equation
   445,086.72 : 667,632.96 = 112,662.72 : x
2. Step 2: Convert to fraction form
   445,086.72/667,632.96 = 112,662.72/x
3. Step 3: Cross multiply
   445,086.72x = 667,632.96 × 112,662.72
4. Step 4: Simplify right side
   445,086.72x = 75,217,345,235.25
5. Step 5: Solve for x
   x = 75,217,345,235.25/445,086.72
6. Step 6: Final answer
   x = 168,994.81