Finding the Fourth Proportional to 274,638, 411,959.52 and 108,426

Step by Step Solution

1. Step 1: Write the proportion equation
   274,638 : 411,959.52 = 108,426 : x
2. Step 2: Convert to fraction form
   274,638/411,959.52 = 108,426/x
3. Step 3: Cross multiply
   274,638x = 411,959.52 × 108,426
4. Step 4: Simplify right side
   274,638x = 44,667,122,915.52
5. Step 5: Solve for x
   x = 44,667,122,915.52/274,638
6. Step 6: Final answer
   x = 162,639.99