Finding the Fourth Proportional to 19,019.48, 26,238.03 and 12,307.27

Step by Step Solution

1. Step 1: Write the proportion equation
   19,019.48 : 26,238.03 = 12,307.27 : x
2. Step 2: Convert to fraction form
   19,019.48/26,238.03 = 12,307.27/x
3. Step 3: Cross multiply
   19,019.48x = 26,238.03 × 12,307.27
4. Step 4: Simplify right side
   19,019.48x = 322,918,519.48
5. Step 5: Solve for x
   x = 322,918,519.48/19,019.48
6. Step 6: Final answer
   x = 16,978.31