Finding the Fourth Proportional to 22,637.79, 31,243.89 and 12,569.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,637.79 : 31,243.89 = 12,569.46 : x
2. Step 2: Convert to fraction form
   22,637.79/31,243.89 = 12,569.46/x
3. Step 3: Cross multiply
   22,637.79x = 31,243.89 × 12,569.46
4. Step 4: Simplify right side
   22,637.79x = 392,718,825.60
5. Step 5: Solve for x
   x = 392,718,825.60/22,637.79
6. Step 6: Final answer
   x = 17,347.93