Finding the Fourth Proportional to 28,582.56, 39,443.76 and 16,007.31

Step by Step Solution

1. Step 1: Write the proportion equation
   28,582.56 : 39,443.76 = 16,007.31 : x
2. Step 2: Convert to fraction form
   28,582.56/39,443.76 = 16,007.31/x
3. Step 3: Cross multiply
   28,582.56x = 39,443.76 × 16,007.31
4. Step 4: Simplify right side
   28,582.56x = 631,388,493.89
5. Step 5: Solve for x
   x = 631,388,493.89/28,582.56
6. Step 6: Final answer
   x = 22,089.99