Finding the Fourth Proportional to 20,582.93, 30,841.59 and 13,181.30

Step by Step Solution

1. Step 1: Write the proportion equation
   20,582.93 : 30,841.59 = 13,181.30 : x
2. Step 2: Convert to fraction form
   20,582.93/30,841.59 = 13,181.30/x
3. Step 3: Cross multiply
   20,582.93x = 30,841.59 × 13,181.30
4. Step 4: Simplify right side
   20,582.93x = 406,532,250.27
5. Step 5: Solve for x
   x = 406,532,250.27/20,582.93
6. Step 6: Final answer
   x = 19,750.94