Finding the Fourth Proportional to 259,562, 358,196.10 and 140,330

Step by Step Solution

1. Step 1: Write the proportion equation
   259,562 : 358,196.10 = 140,330 : x
2. Step 2: Convert to fraction form
   259,562/358,196.10 = 140,330/x
3. Step 3: Cross multiply
   259,562x = 358,196.10 × 140,330
4. Step 4: Simplify right side
   259,562x = 50,265,658,713
5. Step 5: Solve for x
   x = 50,265,658,713/259,562
6. Step 6: Final answer
   x = 193,655.69