Finding the Fourth Proportional to 8,238.72, 12,358.83 and 2,692.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,238.72 : 12,358.83 = 2,692.09 : x
2. Step 2: Convert to fraction form
   8,238.72/12,358.83 = 2,692.09/x
3. Step 3: Cross multiply
   8,238.72x = 12,358.83 × 2,692.09
4. Step 4: Simplify right side
   8,238.72x = 33,271,082.65
5. Step 5: Solve for x
   x = 33,271,082.65/8,238.72
6. Step 6: Final answer
   x = 4,038.38