Finding the Fourth Proportional to 31,582.24, 43,590.83 and 20,829.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,582.24 : 43,590.83 = 20,829.06 : x
2. Step 2: Convert to fraction form
   31,582.24/43,590.83 = 20,829.06/x
3. Step 3: Cross multiply
   31,582.24x = 43,590.83 × 20,829.06
4. Step 4: Simplify right side
   31,582.24x = 907,955,909.37
5. Step 5: Solve for x
   x = 907,955,909.37/31,582.24
6. Step 6: Final answer
   x = 28,748.94