Finding the Fourth Proportional to 17,540.83, 26,085.69 and 16,987.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,540.83 : 26,085.69 = 16,987.09 : x
2. Step 2: Convert to fraction form
   17,540.83/26,085.69 = 16,987.09/x
3. Step 3: Cross multiply
   17,540.83x = 26,085.69 × 16,987.09
4. Step 4: Simplify right side
   17,540.83x = 443,119,963.74
5. Step 5: Solve for x
   x = 443,119,963.74/17,540.83
6. Step 6: Final answer
   x = 25,262.20