Finding the Fourth Proportional to 12,395.39, 17,097.89 and 8,146.67

Step by Step Solution

1. Step 1: Write the proportion equation
   12,395.39 : 17,097.89 = 8,146.67 : x
2. Step 2: Convert to fraction form
   12,395.39/17,097.89 = 8,146.67/x
3. Step 3: Cross multiply
   12,395.39x = 17,097.89 × 8,146.67
4. Step 4: Simplify right side
   12,395.39x = 139,290,741.30
5. Step 5: Solve for x
   x = 139,290,741.30/12,395.39
6. Step 6: Final answer
   x = 11,237.31