Finding the Fourth Proportional to 12,936.84, 19,404.85 and 3,577.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,936.84 : 19,404.85 = 3,577.42 : x
2. Step 2: Convert to fraction form
   12,936.84/19,404.85 = 3,577.42/x
3. Step 3: Cross multiply
   12,936.84x = 19,404.85 × 3,577.42
4. Step 4: Simplify right side
   12,936.84x = 69,419,298.49
5. Step 5: Solve for x
   x = 69,419,298.49/12,936.84
6. Step 6: Final answer
   x = 5,366.02