Finding the Fourth Proportional to 144,960.34, 217,388.40 and 50,164.78

Step by Step Solution

1. Step 1: Write the proportion equation
   144,960.34 : 217,388.40 = 50,164.78 : x
2. Step 2: Convert to fraction form
   144,960.34/217,388.40 = 50,164.78/x
3. Step 3: Cross multiply
   144,960.34x = 217,388.40 × 50,164.78
4. Step 4: Simplify right side
   144,960.34x = 10,905,241,674.37
5. Step 5: Solve for x
   x = 10,905,241,674.37/144,960.34
6. Step 6: Final answer
   x = 75,229.14