Finding the Fourth Proportional to 300,014.89, 450,022.78 and 122,521.91

Step by Step Solution

1. Step 1: Write the proportion equation
   300,014.89 : 450,022.78 = 122,521.91 : x
2. Step 2: Convert to fraction form
   300,014.89/450,022.78 = 122,521.91/x
3. Step 3: Cross multiply
   300,014.89x = 450,022.78 × 122,521.91
4. Step 4: Simplify right side
   300,014.89x = 55,137,649,936.50
5. Step 5: Solve for x
   x = 55,137,649,936.50/300,014.89
6. Step 6: Final answer
   x = 183,783.04