Finding the Fourth Proportional to 259,807.50, 389,722.59 and 82,327.59

Step by Step Solution

1. Step 1: Write the proportion equation
   259,807.50 : 389,722.59 = 82,327.59 : x
2. Step 2: Convert to fraction form
   259,807.50/389,722.59 = 82,327.59/x
3. Step 3: Cross multiply
   259,807.50x = 389,722.59 × 82,327.59
4. Step 4: Simplify right side
   259,807.50x = 32,084,921,603.26
5. Step 5: Solve for x
   x = 32,084,921,603.26/259,807.50
6. Step 6: Final answer
   x = 123,494.98