Finding the Fourth Proportional to 22,613.21, 31,208.14 and 12,544.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,613.21 : 31,208.14 = 12,544.89 : x
2. Step 2: Convert to fraction form
   22,613.21/31,208.14 = 12,544.89/x
3. Step 3: Cross multiply
   22,613.21x = 31,208.14 × 12,544.89
4. Step 4: Simplify right side
   22,613.21x = 391,502,814.83
5. Step 5: Solve for x
   x = 391,502,814.83/22,613.21
6. Step 6: Final answer
   x = 17,313.01