Finding the Fourth Proportional to 388,929.72, 536,766.39 and 245,682.84

Step by Step Solution

1. Step 1: Write the proportion equation
   388,929.72 : 536,766.39 = 245,682.84 : x
2. Step 2: Convert to fraction form
   388,929.72/536,766.39 = 245,682.84/x
3. Step 3: Cross multiply
   388,929.72x = 536,766.39 × 245,682.84
4. Step 4: Simplify right side
   388,929.72x = 131,874,291,111.75
5. Step 5: Solve for x
   x = 131,874,291,111.75/388,929.72
6. Step 6: Final answer
   x = 339,069.72