Finding the Fourth Proportional to 17,809.64, 24,578.52 and 9,851.99

Step by Step Solution

1. Step 1: Write the proportion equation
   17,809.64 : 24,578.52 = 9,851.99 : x
2. Step 2: Convert to fraction form
   17,809.64/24,578.52 = 9,851.99/x
3. Step 3: Cross multiply
   17,809.64x = 24,578.52 × 9,851.99
4. Step 4: Simplify right side
   17,809.64x = 242,147,333.25
5. Step 5: Solve for x
   x = 242,147,333.25/17,809.64
6. Step 6: Final answer
   x = 13,596.42