Finding the Fourth Proportional to 259,277, 357,802.50 and 140,045

Step by Step Solution

1. Step 1: Write the proportion equation
   259,277 : 357,802.50 = 140,045 : x
2. Step 2: Convert to fraction form
   259,277/357,802.50 = 140,045/x
3. Step 3: Cross multiply
   259,277x = 357,802.50 × 140,045
4. Step 4: Simplify right side
   259,277x = 50,108,451,112.50
5. Step 5: Solve for x
   x = 50,108,451,112.50/259,277
6. Step 6: Final answer
   x = 193,262.23