Finding the Fourth Proportional to 269,025.51, 368,566.55 and 258,936.15

Step by Step Solution

1. Step 1: Write the proportion equation
   269,025.51 : 368,566.55 = 258,936.15 : x
2. Step 2: Convert to fraction form
   269,025.51/368,566.55 = 258,936.15/x
3. Step 3: Cross multiply
   269,025.51x = 368,566.55 × 258,936.15
4. Step 4: Simplify right side
   269,025.51x = 95,435,204,123.12
5. Step 5: Solve for x
   x = 95,435,204,123.12/269,025.51
6. Step 6: Final answer
   x = 354,744.07