Finding the Fourth Proportional to 22,613.50, 31,207.01 and 12,542.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,613.50 : 31,207.01 = 12,542.37 : x
2. Step 2: Convert to fraction form
   22,613.50/31,207.01 = 12,542.37/x
3. Step 3: Cross multiply
   22,613.50x = 31,207.01 × 12,542.37
4. Step 4: Simplify right side
   22,613.50x = 391,409,866.01
5. Step 5: Solve for x
   x = 391,409,866.01/22,613.50
6. Step 6: Final answer
   x = 17,308.68