Finding the Fourth Proportional to 8,290.19, 12,438.52 and 3,096.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,290.19 : 12,438.52 = 3,096.47 : x
2. Step 2: Convert to fraction form
   8,290.19/12,438.52 = 3,096.47/x
3. Step 3: Cross multiply
   8,290.19x = 12,438.52 × 3,096.47
4. Step 4: Simplify right side
   8,290.19x = 38,515,511.77
5. Step 5: Solve for x
   x = 38,515,511.77/8,290.19
6. Step 6: Final answer
   x = 4,645.91