Finding the Fourth Proportional to 22,654.42, 31,262.94 and 12,445.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,654.42 : 31,262.94 = 12,445.60 : x
2. Step 2: Convert to fraction form
   22,654.42/31,262.94 = 12,445.60/x
3. Step 3: Cross multiply
   22,654.42x = 31,262.94 × 12,445.60
4. Step 4: Simplify right side
   22,654.42x = 389,086,046.06
5. Step 5: Solve for x
   x = 389,086,046.06/22,654.42
6. Step 6: Final answer
   x = 17,174.84