Finding the Fourth Proportional to 22,658.27, 31,268.00 and 12,586.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,658.27 : 31,268.00 = 12,586.31 : x
2. Step 2: Convert to fraction form
   22,658.27/31,268.00 = 12,586.31/x
3. Step 3: Cross multiply
   22,658.27x = 31,268.00 × 12,586.31
4. Step 4: Simplify right side
   22,658.27x = 393,548,678.15
5. Step 5: Solve for x
   x = 393,548,678.15/22,658.27
6. Step 6: Final answer
   x = 17,368.88