Finding the Fourth Proportional to 9,682.40, 14,521.08 and 3,105.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,682.40 : 14,521.08 = 3,105.20 : x
2. Step 2: Convert to fraction form
   9,682.40/14,521.08 = 3,105.20/x
3. Step 3: Cross multiply
   9,682.40x = 14,521.08 × 3,105.20
4. Step 4: Simplify right side
   9,682.40x = 45,090,857.62
5. Step 5: Solve for x
   x = 45,090,857.62/9,682.40
6. Step 6: Final answer
   x = 4,656.99