Finding the Fourth Proportional to 22,989.47, 34,459.69 and 13,107.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,989.47 : 34,459.69 = 13,107.47 : x
2. Step 2: Convert to fraction form
   22,989.47/34,459.69 = 13,107.47/x
3. Step 3: Cross multiply
   22,989.47x = 34,459.69 × 13,107.47
4. Step 4: Simplify right side
   22,989.47x = 451,679,352.88
5. Step 5: Solve for x
   x = 451,679,352.88/22,989.47
6. Step 6: Final answer
   x = 19,647.23