Finding the Fourth Proportional to 22,661.14, 31,258.52 and 13,456.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,661.14 : 31,258.52 = 13,456.45 : x
2. Step 2: Convert to fraction form
   22,661.14/31,258.52 = 13,456.45/x
3. Step 3: Cross multiply
   22,661.14x = 31,258.52 × 13,456.45
4. Step 4: Simplify right side
   22,661.14x = 420,628,711.45
5. Step 5: Solve for x
   x = 420,628,711.45/22,661.14
6. Step 6: Final answer
   x = 18,561.67