Finding the Fourth Proportional to 250,399.76, 345,584.76 and 142,945.52

Step by Step Solution

1. Step 1: Write the proportion equation
   250,399.76 : 345,584.76 = 142,945.52 : x
2. Step 2: Convert to fraction form
   250,399.76/345,584.76 = 142,945.52/x
3. Step 3: Cross multiply
   250,399.76x = 345,584.76 × 142,945.52
4. Step 4: Simplify right side
   250,399.76x = 49,399,793,222.28
5. Step 5: Solve for x
   x = 49,399,793,222.28/250,399.76
6. Step 6: Final answer
   x = 197,283.71