Finding the Fourth Proportional to 259,177, 357,667.86 and 144,452.47

Step by Step Solution

1. Step 1: Write the proportion equation
   259,177 : 357,667.86 = 144,452.47 : x
2. Step 2: Convert to fraction form
   259,177/357,667.86 = 144,452.47/x
3. Step 3: Cross multiply
   259,177x = 357,667.86 × 144,452.47
4. Step 4: Simplify right side
   259,177x = 51,666,005,816.61
5. Step 5: Solve for x
   x = 51,666,005,816.61/259,177
6. Step 6: Final answer
   x = 199,346.42