Finding the Fourth Proportional to 22,828.42, 31,503.29 and 12,757.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,828.42 : 31,503.29 = 12,757.24 : x
2. Step 2: Convert to fraction form
   22,828.42/31,503.29 = 12,757.24/x
3. Step 3: Cross multiply
   22,828.42x = 31,503.29 × 12,757.24
4. Step 4: Simplify right side
   22,828.42x = 401,895,031.32
5. Step 5: Solve for x
   x = 401,895,031.32/22,828.42
6. Step 6: Final answer
   x = 17,605.03