Finding the Fourth Proportional to 259,304, 357,839.84 and 140,072

Step by Step Solution

1. Step 1: Write the proportion equation
   259,304 : 357,839.84 = 140,072 : x
2. Step 2: Convert to fraction form
   259,304/357,839.84 = 140,072/x
3. Step 3: Cross multiply
   259,304x = 357,839.84 × 140,072
4. Step 4: Simplify right side
   259,304x = 50,123,342,068.48
5. Step 5: Solve for x
   x = 50,123,342,068.48/259,304
6. Step 6: Final answer
   x = 193,299.53