Finding the Fourth Proportional to 258,744.32, 388,089.18 and 69,223.82

Step by Step Solution

1. Step 1: Write the proportion equation
   258,744.32 : 388,089.18 = 69,223.82 : x
2. Step 2: Convert to fraction form
   258,744.32/388,089.18 = 69,223.82/x
3. Step 3: Cross multiply
   258,744.32x = 388,089.18 × 69,223.82
4. Step 4: Simplify right side
   258,744.32x = 26,865,015,540.27
5. Step 5: Solve for x
   x = 26,865,015,540.27/258,744.32
6. Step 6: Final answer
   x = 103,828.43