Finding the Fourth Proportional to 300,659.36, 450,988.72 and 123,166.68

Step by Step Solution

1. Step 1: Write the proportion equation
   300,659.36 : 450,988.72 = 123,166.68 : x
2. Step 2: Convert to fraction form
   300,659.36/450,988.72 = 123,166.68/x
3. Step 3: Cross multiply
   300,659.36x = 450,988.72 × 123,166.68
4. Step 4: Simplify right side
   300,659.36x = 55,546,783,359.85
5. Step 5: Solve for x
   x = 55,546,783,359.85/300,659.36
6. Step 6: Final answer
   x = 184,749.89