Finding the Fourth Proportional to 22,271.10, 30,725.56 and 12,711.51

Step by Step Solution

1. Step 1: Write the proportion equation
   22,271.10 : 30,725.56 = 12,711.51 : x
2. Step 2: Convert to fraction form
   22,271.10/30,725.56 = 12,711.51/x
3. Step 3: Cross multiply
   22,271.10x = 30,725.56 × 12,711.51
4. Step 4: Simplify right side
   22,271.10x = 390,568,279.08
5. Step 5: Solve for x
   x = 390,568,279.08/22,271.10
6. Step 6: Final answer
   x = 17,537.00