Finding the Fourth Proportional to 22,667.31, 31,271.92 and 13,105.44

Step by Step Solution

1. Step 1: Write the proportion equation
   22,667.31 : 31,271.92 = 13,105.44 : x
2. Step 2: Convert to fraction form
   22,667.31/31,271.92 = 13,105.44/x
3. Step 3: Cross multiply
   22,667.31x = 31,271.92 × 13,105.44
4. Step 4: Simplify right side
   22,667.31x = 409,832,271.24
5. Step 5: Solve for x
   x = 409,832,271.24/22,667.31
6. Step 6: Final answer
   x = 18,080.32