Finding the Fourth Proportional to 22,863.69, 31,528.71 and 13,902.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,863.69 : 31,528.71 = 13,902.46 : x
2. Step 2: Convert to fraction form
   22,863.69/31,528.71 = 13,902.46/x
3. Step 3: Cross multiply
   22,863.69x = 31,528.71 × 13,902.46
4. Step 4: Simplify right side
   22,863.69x = 438,326,550.80
5. Step 5: Solve for x
   x = 438,326,550.80/22,863.69
6. Step 6: Final answer
   x = 19,171.30