Finding the Fourth Proportional to 12,123.12, 16,729.83 and 6,818.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.12 : 16,729.83 = 6,818.01 : x
2. Step 2: Convert to fraction form
   12,123.12/16,729.83 = 6,818.01/x
3. Step 3: Cross multiply
   12,123.12x = 16,729.83 × 6,818.01
4. Step 4: Simplify right side
   12,123.12x = 114,064,148.24
5. Step 5: Solve for x
   x = 114,064,148.24/12,123.12
6. Step 6: Final answer
   x = 9,408.81