Finding the Fourth Proportional to 22,631.07, 31,231.59 and 12,560.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,631.07 : 31,231.59 = 12,560.25 : x
2. Step 2: Convert to fraction form
   22,631.07/31,231.59 = 12,560.25/x
3. Step 3: Cross multiply
   22,631.07x = 31,231.59 × 12,560.25
4. Step 4: Simplify right side
   22,631.07x = 392,276,578.30
5. Step 5: Solve for x
   x = 392,276,578.30/22,631.07
6. Step 6: Final answer
   x = 17,333.54