Finding the Fourth Proportional to 300,665.06, 450,997.17 and 123,172.37

Step by Step Solution

1. Step 1: Write the proportion equation
   300,665.06 : 450,997.17 = 123,172.37 : x
2. Step 2: Convert to fraction form
   300,665.06/450,997.17 = 123,172.37/x
3. Step 3: Cross multiply
   300,665.06x = 450,997.17 × 123,172.37
4. Step 4: Simplify right side
   300,665.06x = 55,550,388,037.21
5. Step 5: Solve for x
   x = 55,550,388,037.21/300,665.06
6. Step 6: Final answer
   x = 184,758.38