Finding the Fourth Proportional to 22,608, 31,199.42 and 12,536.87

Step by Step Solution

1. Step 1: Write the proportion equation
   22,608 : 31,199.42 = 12,536.87 : x
2. Step 2: Convert to fraction form
   22,608/31,199.42 = 12,536.87/x
3. Step 3: Cross multiply
   22,608x = 31,199.42 × 12,536.87
4. Step 4: Simplify right side
   22,608x = 391,143,072.62
5. Step 5: Solve for x
   x = 391,143,072.62/22,608
6. Step 6: Final answer
   x = 17,301.09