Finding the Fourth Proportional to 11,405.02, 17,107.52 and 8,304.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,405.02 : 17,107.52 = 8,304.75 : x
2. Step 2: Convert to fraction form
   11,405.02/17,107.52 = 8,304.75/x
3. Step 3: Cross multiply
   11,405.02x = 17,107.52 × 8,304.75
4. Step 4: Simplify right side
   11,405.02x = 142,073,676.72
5. Step 5: Solve for x
   x = 142,073,676.72/11,405.02
6. Step 6: Final answer
   x = 12,457.12