Finding the Fourth Proportional to 12,099.33, 18,149.68 and 4,308.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,099.33 : 18,149.68 = 4,308.14 : x
2. Step 2: Convert to fraction form
   12,099.33/18,149.68 = 4,308.14/x
3. Step 3: Cross multiply
   12,099.33x = 18,149.68 × 4,308.14
4. Step 4: Simplify right side
   12,099.33x = 78,191,354.89
5. Step 5: Solve for x
   x = 78,191,354.89/12,099.33
6. Step 6: Final answer
   x = 6,462.45