Finding the Fourth Proportional to 259,162.56, 357,648.48 and 144,450.72

Step by Step Solution

1. Step 1: Write the proportion equation
   259,162.56 : 357,648.48 = 144,450.72 : x
2. Step 2: Convert to fraction form
   259,162.56/357,648.48 = 144,450.72/x
3. Step 3: Cross multiply
   259,162.56x = 357,648.48 × 144,450.72
4. Step 4: Simplify right side
   259,162.56x = 51,662,580,442.91
5. Step 5: Solve for x
   x = 51,662,580,442.91/259,162.56
6. Step 6: Final answer
   x = 199,344.31