Finding the Fourth Proportional to 22,483.72, 31,028.53 and 12,926.70

Step by Step Solution

1. Step 1: Write the proportion equation
   22,483.72 : 31,028.53 = 12,926.70 : x
2. Step 2: Convert to fraction form
   22,483.72/31,028.53 = 12,926.70/x
3. Step 3: Cross multiply
   22,483.72x = 31,028.53 × 12,926.70
4. Step 4: Simplify right side
   22,483.72x = 401,096,608.64
5. Step 5: Solve for x
   x = 401,096,608.64/22,483.72
6. Step 6: Final answer
   x = 17,839.43