Finding the Fourth Proportional to 22,636.89, 31,238.77 and 12,566.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,636.89 : 31,238.77 = 12,566.79 : x
2. Step 2: Convert to fraction form
   22,636.89/31,238.77 = 12,566.79/x
3. Step 3: Cross multiply
   22,636.89x = 31,238.77 × 12,566.79
4. Step 4: Simplify right side
   22,636.89x = 392,571,062.45
5. Step 5: Solve for x
   x = 392,571,062.45/22,636.89
6. Step 6: Final answer
   x = 17,342.09