Finding the Fourth Proportional to 144,967.68, 217,399.41 and 50,172.15

Step by Step Solution

1. Step 1: Write the proportion equation
   144,967.68 : 217,399.41 = 50,172.15 : x
2. Step 2: Convert to fraction form
   144,967.68/217,399.41 = 50,172.15/x
3. Step 3: Cross multiply
   144,967.68x = 217,399.41 × 50,172.15
4. Step 4: Simplify right side
   144,967.68x = 10,907,395,808.43
5. Step 5: Solve for x
   x = 10,907,395,808.43/144,967.68
6. Step 6: Final answer
   x = 75,240.19