Finding the Fourth Proportional to 7,123.46, 10,686.42 and 3,176.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,123.46 : 10,686.42 = 3,176.12 : x
2. Step 2: Convert to fraction form
   7,123.46/10,686.42 = 3,176.12/x
3. Step 3: Cross multiply
   7,123.46x = 10,686.42 × 3,176.12
4. Step 4: Simplify right side
   7,123.46x = 33,941,352.29
5. Step 5: Solve for x
   x = 33,941,352.29/7,123.46
6. Step 6: Final answer
   x = 4,764.73