Finding the Fourth Proportional to 17,311.72, 23,890.20 and 9,758.08

Step by Step Solution

1. Step 1: Write the proportion equation
   17,311.72 : 23,890.20 = 9,758.08 : x
2. Step 2: Convert to fraction form
   17,311.72/23,890.20 = 9,758.08/x
3. Step 3: Cross multiply
   17,311.72x = 23,890.20 × 9,758.08
4. Step 4: Simplify right side
   17,311.72x = 233,122,482.82
5. Step 5: Solve for x
   x = 233,122,482.82/17,311.72
6. Step 6: Final answer
   x = 13,466.17