Finding the Fourth Proportional to 22,483.40, 31,028.14 and 12,926.40

Step by Step Solution

1. Step 1: Write the proportion equation
   22,483.40 : 31,028.14 = 12,926.40 : x
2. Step 2: Convert to fraction form
   22,483.40/31,028.14 = 12,926.40/x
3. Step 3: Cross multiply
   22,483.40x = 31,028.14 × 12,926.40
4. Step 4: Simplify right side
   22,483.40x = 401,082,148.90
5. Step 5: Solve for x
   x = 401,082,148.90/22,483.40
6. Step 6: Final answer
   x = 17,839.03