Finding the Fourth Proportional to 7,676.18, 11,499.20 and 3,980.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,676.18 : 11,499.20 = 3,980.82 : x
2. Step 2: Convert to fraction form
   7,676.18/11,499.20 = 3,980.82/x
3. Step 3: Cross multiply
   7,676.18x = 11,499.20 × 3,980.82
4. Step 4: Simplify right side
   7,676.18x = 45,776,245.34
5. Step 5: Solve for x
   x = 45,776,245.34/7,676.18
6. Step 6: Final answer
   x = 5,963.41