Finding the Fourth Proportional to 31,585.62, 43,584.42 and 18,839.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,585.62 : 43,584.42 = 18,839.50 : x
2. Step 2: Convert to fraction form
   31,585.62/43,584.42 = 18,839.50/x
3. Step 3: Cross multiply
   31,585.62x = 43,584.42 × 18,839.50
4. Step 4: Simplify right side
   31,585.62x = 821,108,680.59
5. Step 5: Solve for x
   x = 821,108,680.59/31,585.62
6. Step 6: Final answer
   x = 25,996.28