Finding the Fourth Proportional to 12,419.67, 17,138.10 and 7,314.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,419.67 : 17,138.10 = 7,314.37 : x
2. Step 2: Convert to fraction form
   12,419.67/17,138.10 = 7,314.37/x
3. Step 3: Cross multiply
   12,419.67x = 17,138.10 × 7,314.37
4. Step 4: Simplify right side
   12,419.67x = 125,354,404.50
5. Step 5: Solve for x
   x = 125,354,404.50/12,419.67
6. Step 6: Final answer
   x = 10,093.22