Finding the Fourth Proportional to 22,162.56, 30,587.04 and 12,731.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,162.56 : 30,587.04 = 12,731.10 : x
2. Step 2: Convert to fraction form
   22,162.56/30,587.04 = 12,731.10/x
3. Step 3: Cross multiply
   22,162.56x = 30,587.04 × 12,731.10
4. Step 4: Simplify right side
   22,162.56x = 389,406,664.94
5. Step 5: Solve for x
   x = 389,406,664.94/22,162.56
6. Step 6: Final answer
   x = 17,570.47