Finding the Fourth Proportional to 259,848, 389,783.34 and 82,368.09

Step by Step Solution

1. Step 1: Write the proportion equation
   259,848 : 389,783.34 = 82,368.09 : x
2. Step 2: Convert to fraction form
   259,848/389,783.34 = 82,368.09/x
3. Step 3: Cross multiply
   259,848x = 389,783.34 × 82,368.09
4. Step 4: Simplify right side
   259,848x = 32,105,709,229.62
5. Step 5: Solve for x
   x = 32,105,709,229.62/259,848
6. Step 6: Final answer
   x = 123,555.73