Finding the Fourth Proportional to 250,373, 345,514.74 and 144,389

Step by Step Solution

1. Step 1: Write the proportion equation
   250,373 : 345,514.74 = 144,389 : x
2. Step 2: Convert to fraction form
   250,373/345,514.74 = 144,389/x
3. Step 3: Cross multiply
   250,373x = 345,514.74 × 144,389
4. Step 4: Simplify right side
   250,373x = 49,888,527,793.86
5. Step 5: Solve for x
   x = 49,888,527,793.86/250,373
6. Step 6: Final answer
   x = 199,256.82