Finding the Fourth Proportional to 17,815.88, 24,584.72 and 9,857.54

Step by Step Solution

1. Step 1: Write the proportion equation
   17,815.88 : 24,584.72 = 9,857.54 : x
2. Step 2: Convert to fraction form
   17,815.88/24,584.72 = 9,857.54/x
3. Step 3: Cross multiply
   17,815.88x = 24,584.72 × 9,857.54
4. Step 4: Simplify right side
   17,815.88x = 242,344,860.79
5. Step 5: Solve for x
   x = 242,344,860.79/17,815.88
6. Step 6: Final answer
   x = 13,602.74