Finding the Fourth Proportional to 259,019.55, 357,441.54 and 144,298.03

Step by Step Solution

1. Step 1: Write the proportion equation
   259,019.55 : 357,441.54 = 144,298.03 : x
2. Step 2: Convert to fraction form
   259,019.55/357,441.54 = 144,298.03/x
3. Step 3: Cross multiply
   259,019.55x = 357,441.54 × 144,298.03
4. Step 4: Simplify right side
   259,019.55x = 51,578,110,062.17
5. Step 5: Solve for x
   x = 51,578,110,062.17/259,019.55
6. Step 6: Final answer
   x = 199,128.25