Finding the Fourth Proportional to 17,808.72, 24,576.84 and 10,355.28

Step by Step Solution

1. Step 1: Write the proportion equation
   17,808.72 : 24,576.84 = 10,355.28 : x
2. Step 2: Convert to fraction form
   17,808.72/24,576.84 = 10,355.28/x
3. Step 3: Cross multiply
   17,808.72x = 24,576.84 × 10,355.28
4. Step 4: Simplify right side
   17,808.72x = 254,500,059.72
5. Step 5: Solve for x
   x = 254,500,059.72/17,808.72
6. Step 6: Final answer
   x = 14,290.76