Finding the Fourth Proportional to 22,563.25, 31,139.59 and 13,003.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,563.25 : 31,139.59 = 13,003.48 : x
2. Step 2: Convert to fraction form
   22,563.25/31,139.59 = 13,003.48/x
3. Step 3: Cross multiply
   22,563.25x = 31,139.59 × 13,003.48
4. Step 4: Simplify right side
   22,563.25x = 404,922,925.42
5. Step 5: Solve for x
   x = 404,922,925.42/22,563.25
6. Step 6: Final answer
   x = 17,946.13