Finding the Fourth Proportional to 8,362.98, 12,559.05 and 7,679.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,362.98 : 12,559.05 = 7,679.34 : x
2. Step 2: Convert to fraction form
   8,362.98/12,559.05 = 7,679.34/x
3. Step 3: Cross multiply
   8,362.98x = 12,559.05 × 7,679.34
4. Step 4: Simplify right side
   8,362.98x = 96,445,215.03
5. Step 5: Solve for x
   x = 96,445,215.03/8,362.98
6. Step 6: Final answer
   x = 11,532.40