Finding the Fourth Proportional to 7,123.50, 10,686.96 and 3,226.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,123.50 : 10,686.96 = 3,226.86 : x
2. Step 2: Convert to fraction form
   7,123.50/10,686.96 = 3,226.86/x
3. Step 3: Cross multiply
   7,123.50x = 10,686.96 × 3,226.86
4. Step 4: Simplify right side
   7,123.50x = 34,485,323.75
5. Step 5: Solve for x
   x = 34,485,323.75/7,123.50
6. Step 6: Final answer
   x = 4,841.06