Finding the Fourth Proportional to 8,123.87, 12,187.02 and 3,443.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.87 : 12,187.02 = 3,443.91 : x
2. Step 2: Convert to fraction form
   8,123.87/12,187.02 = 3,443.91/x
3. Step 3: Cross multiply
   8,123.87x = 12,187.02 × 3,443.91
4. Step 4: Simplify right side
   8,123.87x = 41,971,000.05
5. Step 5: Solve for x
   x = 41,971,000.05/8,123.87
6. Step 6: Final answer
   x = 5,166.38