Finding the Fourth Proportional to 250,608.54, 345,843.27 and 137,423.82

Step by Step Solution

1. Step 1: Write the proportion equation
   250,608.54 : 345,843.27 = 137,423.82 : x
2. Step 2: Convert to fraction form
   250,608.54/345,843.27 = 137,423.82/x
3. Step 3: Cross multiply
   250,608.54x = 345,843.27 × 137,423.82
4. Step 4: Simplify right side
   250,608.54x = 47,527,103,284.69
5. Step 5: Solve for x
   x = 47,527,103,284.69/250,608.54
6. Step 6: Final answer
   x = 189,646.78