Finding the Fourth Proportional to 17,532.27, 24,171.57 and 12,980.57

Step by Step Solution

1. Step 1: Write the proportion equation
   17,532.27 : 24,171.57 = 12,980.57 : x
2. Step 2: Convert to fraction form
   17,532.27/24,171.57 = 12,980.57/x
3. Step 3: Cross multiply
   17,532.27x = 24,171.57 × 12,980.57
4. Step 4: Simplify right side
   17,532.27x = 313,760,816.82
5. Step 5: Solve for x
   x = 313,760,816.82/17,532.27
6. Step 6: Final answer
   x = 17,896.19