Finding the Fourth Proportional to 300,758.08, 451,137.72 and 123,233.20

Step by Step Solution

1. Step 1: Write the proportion equation
   300,758.08 : 451,137.72 = 123,233.20 : x
2. Step 2: Convert to fraction form
   300,758.08/451,137.72 = 123,233.20/x
3. Step 3: Cross multiply
   300,758.08x = 451,137.72 × 123,233.20
4. Step 4: Simplify right side
   300,758.08x = 55,595,144,876.30
5. Step 5: Solve for x
   x = 55,595,144,876.30/300,758.08
6. Step 6: Final answer
   x = 184,850.05