Finding the Fourth Proportional to 8,123.99, 12,189.32 and 4,173.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.99 : 12,189.32 = 4,173.27 : x
2. Step 2: Convert to fraction form
   8,123.99/12,189.32 = 4,173.27/x
3. Step 3: Cross multiply
   8,123.99x = 12,189.32 × 4,173.27
4. Step 4: Simplify right side
   8,123.99x = 50,869,302.61
5. Step 5: Solve for x
   x = 50,869,302.61/8,123.99
6. Step 6: Final answer
   x = 6,261.62