Finding the Fourth Proportional to 22,449.46, 30,978.14 and 13,017

Step by Step Solution

1. Step 1: Write the proportion equation
   22,449.46 : 30,978.14 = 13,017 : x
2. Step 2: Convert to fraction form
   22,449.46/30,978.14 = 13,017/x
3. Step 3: Cross multiply
   22,449.46x = 30,978.14 × 13,017
4. Step 4: Simplify right side
   22,449.46x = 403,242,448.38
5. Step 5: Solve for x
   x = 403,242,448.38/22,449.46
6. Step 6: Final answer
   x = 17,962.23