Finding the Fourth Proportional to 22,664.06, 31,271.30 and 13,711.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,664.06 : 31,271.30 = 13,711.34 : x
2. Step 2: Convert to fraction form
   22,664.06/31,271.30 = 13,711.34/x
3. Step 3: Cross multiply
   22,664.06x = 31,271.30 × 13,711.34
4. Step 4: Simplify right side
   22,664.06x = 428,771,426.54
5. Step 5: Solve for x
   x = 428,771,426.54/22,664.06
6. Step 6: Final answer
   x = 18,918.56