Finding the Fourth Proportional to 259,344, 357,894.72 and 140,112

Step by Step Solution

1. Step 1: Write the proportion equation
   259,344 : 357,894.72 = 140,112 : x
2. Step 2: Convert to fraction form
   259,344/357,894.72 = 140,112/x
3. Step 3: Cross multiply
   259,344x = 357,894.72 × 140,112
4. Step 4: Simplify right side
   259,344x = 50,145,345,008.64
5. Step 5: Solve for x
   x = 50,145,345,008.64/259,344
6. Step 6: Final answer
   x = 193,354.56