Finding the Fourth Proportional to 12,064.64, 18,105.51 and 5,491.67

Step by Step Solution

1. Step 1: Write the proportion equation
   12,064.64 : 18,105.51 = 5,491.67 : x
2. Step 2: Convert to fraction form
   12,064.64/18,105.51 = 5,491.67/x
3. Step 3: Cross multiply
   12,064.64x = 18,105.51 × 5,491.67
4. Step 4: Simplify right side
   12,064.64x = 99,429,486.10
5. Step 5: Solve for x
   x = 99,429,486.10/12,064.64
6. Step 6: Final answer
   x = 8,241.40