Finding the Fourth Proportional to 22,852.89, 31,536.77 and 12,781.35

Step by Step Solution

1. Step 1: Write the proportion equation
   22,852.89 : 31,536.77 = 12,781.35 : x
2. Step 2: Convert to fraction form
   22,852.89/31,536.77 = 12,781.35/x
3. Step 3: Cross multiply
   22,852.89x = 31,536.77 × 12,781.35
4. Step 4: Simplify right side
   22,852.89x = 403,082,431.33
5. Step 5: Solve for x
   x = 403,082,431.33/22,852.89
6. Step 6: Final answer
   x = 17,638.14