Finding the Fourth Proportional to 11,688.57, 17,536.37 and 5,452.21

Step by Step Solution

1. Step 1: Write the proportion equation
   11,688.57 : 17,536.37 = 5,452.21 : x
2. Step 2: Convert to fraction form
   11,688.57/17,536.37 = 5,452.21/x
3. Step 3: Cross multiply
   11,688.57x = 17,536.37 × 5,452.21
4. Step 4: Simplify right side
   11,688.57x = 95,611,966.54
5. Step 5: Solve for x
   x = 95,611,966.54/11,688.57
6. Step 6: Final answer
   x = 8,179.95