Finding the Fourth Proportional to 5,131.72, 7,692.32 and 3,896.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,131.72 : 7,692.32 = 3,896.52 : x
2. Step 2: Convert to fraction form
   5,131.72/7,692.32 = 3,896.52/x
3. Step 3: Cross multiply
   5,131.72x = 7,692.32 × 3,896.52
4. Step 4: Simplify right side
   5,131.72x = 29,973,278.73
5. Step 5: Solve for x
   x = 29,973,278.73/5,131.72
6. Step 6: Final answer
   x = 5,840.79