Finding the Fourth Proportional to 250,426, 345,587.88 and 144,442

Step by Step Solution

1. Step 1: Write the proportion equation
   250,426 : 345,587.88 = 144,442 : x
2. Step 2: Convert to fraction form
   250,426/345,587.88 = 144,442/x
3. Step 3: Cross multiply
   250,426x = 345,587.88 × 144,442
4. Step 4: Simplify right side
   250,426x = 49,917,404,562.96
5. Step 5: Solve for x
   x = 49,917,404,562.96/250,426
6. Step 6: Final answer
   x = 199,329.96