Finding the Fourth Proportional to 22,271.16, 30,726.58 and 12,704.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,271.16 : 30,726.58 = 12,704.18 : x
2. Step 2: Convert to fraction form
   22,271.16/30,726.58 = 12,704.18/x
3. Step 3: Cross multiply
   22,271.16x = 30,726.58 × 12,704.18
4. Step 4: Simplify right side
   22,271.16x = 390,356,003.10
5. Step 5: Solve for x
   x = 390,356,003.10/22,271.16
6. Step 6: Final answer
   x = 17,527.42