Finding the Fourth Proportional to 8,454.72, 12,665.64 and 5,524.14

Step by Step Solution

1. Step 1: Write the proportion equation
   8,454.72 : 12,665.64 = 5,524.14 : x
2. Step 2: Convert to fraction form
   8,454.72/12,665.64 = 5,524.14/x
3. Step 3: Cross multiply
   8,454.72x = 12,665.64 × 5,524.14
4. Step 4: Simplify right side
   8,454.72x = 69,966,768.55
5. Step 5: Solve for x
   x = 69,966,768.55/8,454.72
6. Step 6: Final answer
   x = 8,275.47