Finding the Fourth Proportional to 17,012.76, 25,521.78 and 8,688.27

Step by Step Solution

1. Step 1: Write the proportion equation
   17,012.76 : 25,521.78 = 8,688.27 : x
2. Step 2: Convert to fraction form
   17,012.76/25,521.78 = 8,688.27/x
3. Step 3: Cross multiply
   17,012.76x = 25,521.78 × 8,688.27
4. Step 4: Simplify right side
   17,012.76x = 221,740,115.52
5. Step 5: Solve for x
   x = 221,740,115.52/17,012.76
6. Step 6: Final answer
   x = 13,033.75