Finding the Fourth Proportional to 17,111.88, 25,682.40 and 10,081.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,111.88 : 25,682.40 = 10,081.60 : x
2. Step 2: Convert to fraction form
   17,111.88/25,682.40 = 10,081.60/x
3. Step 3: Cross multiply
   17,111.88x = 25,682.40 × 10,081.60
4. Step 4: Simplify right side
   17,111.88x = 258,919,619.63
5. Step 5: Solve for x
   x = 258,919,619.63/17,111.88
6. Step 6: Final answer
   x = 15,130.99