Finding the Fourth Proportional to 17,145.87, 23,661.69 and 9,591.87

Step by Step Solution

1. Step 1: Write the proportion equation
   17,145.87 : 23,661.69 = 9,591.87 : x
2. Step 2: Convert to fraction form
   17,145.87/23,661.69 = 9,591.87/x
3. Step 3: Cross multiply
   17,145.87x = 23,661.69 × 9,591.87
4. Step 4: Simplify right side
   17,145.87x = 226,959,854.46
5. Step 5: Solve for x
   x = 226,959,854.46/17,145.87
6. Step 6: Final answer
   x = 13,237.00