Finding the Fourth Proportional to 7,123.01, 10,688.34 and 2,965.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,123.01 : 10,688.34 = 2,965.89 : x
2. Step 2: Convert to fraction form
   7,123.01/10,688.34 = 2,965.89/x
3. Step 3: Cross multiply
   7,123.01x = 10,688.34 × 2,965.89
4. Step 4: Simplify right side
   7,123.01x = 31,700,440.72
5. Step 5: Solve for x
   x = 31,700,440.72/7,123.01
6. Step 6: Final answer
   x = 4,450.43