Finding the Fourth Proportional to 7,123.39, 10,687.05 and 2,965.35

Step by Step Solution

1. Step 1: Write the proportion equation
   7,123.39 : 10,687.05 = 2,965.35 : x
2. Step 2: Convert to fraction form
   7,123.39/10,687.05 = 2,965.35/x
3. Step 3: Cross multiply
   7,123.39x = 10,687.05 × 2,965.35
4. Step 4: Simplify right side
   7,123.39x = 31,690,843.72
5. Step 5: Solve for x
   x = 31,690,843.72/7,123.39
6. Step 6: Final answer
   x = 4,448.84