Finding the Fourth Proportional to 17,145.72, 23,659.98 and 9,590.74

Step by Step Solution

1. Step 1: Write the proportion equation
   17,145.72 : 23,659.98 = 9,590.74 : x
2. Step 2: Convert to fraction form
   17,145.72/23,659.98 = 9,590.74/x
3. Step 3: Cross multiply
   17,145.72x = 23,659.98 × 9,590.74
4. Step 4: Simplify right side
   17,145.72x = 226,916,716.59
5. Step 5: Solve for x
   x = 226,916,716.59/17,145.72
6. Step 6: Final answer
   x = 13,234.60