Finding the Fourth Proportional to 8,238.52, 12,359.78 and 2,692.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,238.52 : 12,359.78 = 2,692.12 : x
2. Step 2: Convert to fraction form
   8,238.52/12,359.78 = 2,692.12/x
3. Step 3: Cross multiply
   8,238.52x = 12,359.78 × 2,692.12
4. Step 4: Simplify right side
   8,238.52x = 33,274,010.93
5. Step 5: Solve for x
   x = 33,274,010.93/8,238.52
6. Step 6: Final answer
   x = 4,038.83