Finding the Fourth Proportional to 20,556.58, 30,816.41 and 17,069

Step by Step Solution

1. Step 1: Write the proportion equation
   20,556.58 : 30,816.41 = 17,069 : x
2. Step 2: Convert to fraction form
   20,556.58/30,816.41 = 17,069/x
3. Step 3: Cross multiply
   20,556.58x = 30,816.41 × 17,069
4. Step 4: Simplify right side
   20,556.58x = 526,005,302.29
5. Step 5: Solve for x
   x = 526,005,302.29/20,556.58
6. Step 6: Final answer
   x = 25,588.17