Finding the Fourth Proportional to 22,569.77, 31,146.61 and 13,004.38

Step by Step Solution

1. Step 1: Write the proportion equation
   22,569.77 : 31,146.61 = 13,004.38 : x
2. Step 2: Convert to fraction form
   22,569.77/31,146.61 = 13,004.38/x
3. Step 3: Cross multiply
   22,569.77x = 31,146.61 × 13,004.38
4. Step 4: Simplify right side
   22,569.77x = 405,042,287.13
5. Step 5: Solve for x
   x = 405,042,287.13/22,569.77
6. Step 6: Final answer
   x = 17,946.23