Finding the Fourth Proportional to 7,105.82, 10,659.20 and 2,945.99

Step by Step Solution

1. Step 1: Write the proportion equation
   7,105.82 : 10,659.20 = 2,945.99 : x
2. Step 2: Convert to fraction form
   7,105.82/10,659.20 = 2,945.99/x
3. Step 3: Cross multiply
   7,105.82x = 10,659.20 × 2,945.99
4. Step 4: Simplify right side
   7,105.82x = 31,401,908.53
5. Step 5: Solve for x
   x = 31,401,908.53/7,105.82
6. Step 6: Final answer
   x = 4,419.18