Finding the Fourth Proportional to 144,621.75, 217,072.89 and 69,794.54

Step by Step Solution

1. Step 1: Write the proportion equation
   144,621.75 : 217,072.89 = 69,794.54 : x
2. Step 2: Convert to fraction form
   144,621.75/217,072.89 = 69,794.54/x
3. Step 3: Cross multiply
   144,621.75x = 217,072.89 × 69,794.54
4. Step 4: Simplify right side
   144,621.75x = 15,150,501,425.86
5. Step 5: Solve for x
   x = 15,150,501,425.86/144,621.75
6. Step 6: Final answer
   x = 104,759.49