Finding the Fourth Proportional to 300,123.11, 450,018.50 and 122,754.69

Step by Step Solution

1. Step 1: Write the proportion equation
   300,123.11 : 450,018.50 = 122,754.69 : x
2. Step 2: Convert to fraction form
   300,123.11/450,018.50 = 122,754.69/x
3. Step 3: Cross multiply
   300,123.11x = 450,018.50 × 122,754.69
4. Step 4: Simplify right side
   300,123.11x = 55,241,880,847.99
5. Step 5: Solve for x
   x = 55,241,880,847.99/300,123.11
6. Step 6: Final answer
   x = 184,064.07