Finding the Fourth Proportional to 5,162.12, 7,123.85 and 2,923.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,162.12 : 7,123.85 = 2,923.96 : x
2. Step 2: Convert to fraction form
   5,162.12/7,123.85 = 2,923.96/x
3. Step 3: Cross multiply
   5,162.12x = 7,123.85 × 2,923.96
4. Step 4: Simplify right side
   5,162.12x = 20,829,816.83
5. Step 5: Solve for x
   x = 20,829,816.83/5,162.12
6. Step 6: Final answer
   x = 4,035.13