Finding the Fourth Proportional to 11,717, 17,575.72 and 5,475.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,717 : 17,575.72 = 5,475.30 : x
2. Step 2: Convert to fraction form
   11,717/17,575.72 = 5,475.30/x
3. Step 3: Cross multiply
   11,717x = 17,575.72 × 5,475.30
4. Step 4: Simplify right side
   11,717x = 96,232,339.72
5. Step 5: Solve for x
   x = 96,232,339.72/11,717
6. Step 6: Final answer
   x = 8,213.05