Finding the Fourth Proportional to 12,611.77, 18,920.39 and 3,846.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,611.77 : 18,920.39 = 3,846.42 : x
2. Step 2: Convert to fraction form
   12,611.77/18,920.39 = 3,846.42/x
3. Step 3: Cross multiply
   12,611.77x = 18,920.39 × 3,846.42
4. Step 4: Simplify right side
   12,611.77x = 72,775,747.27
5. Step 5: Solve for x
   x = 72,775,747.27/12,611.77
6. Step 6: Final answer
   x = 5,770.46