Finding the Fourth Proportional to 9,386.82, 12,951.56 and 5,611.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,386.82 : 12,951.56 = 5,611.41 : x
2. Step 2: Convert to fraction form
   9,386.82/12,951.56 = 5,611.41/x
3. Step 3: Cross multiply
   9,386.82x = 12,951.56 × 5,611.41
4. Step 4: Simplify right side
   9,386.82x = 72,676,527.33
5. Step 5: Solve for x
   x = 72,676,527.33/9,386.82
6. Step 6: Final answer
   x = 7,742.40