Finding the Fourth Proportional to 31,567.47, 43,560.63 and 18,819.69

Step by Step Solution

1. Step 1: Write the proportion equation
   31,567.47 : 43,560.63 = 18,819.69 : x
2. Step 2: Convert to fraction form
   31,567.47/43,560.63 = 18,819.69/x
3. Step 3: Cross multiply
   31,567.47x = 43,560.63 × 18,819.69
4. Step 4: Simplify right side
   31,567.47x = 819,797,552.80
5. Step 5: Solve for x
   x = 819,797,552.80/31,567.47
6. Step 6: Final answer
   x = 25,969.69