Finding the Fourth Proportional to 8,454.24, 12,625.20 and 8,362.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,454.24 : 12,625.20 = 8,362.71 : x
2. Step 2: Convert to fraction form
   8,454.24/12,625.20 = 8,362.71/x
3. Step 3: Cross multiply
   8,454.24x = 12,625.20 × 8,362.71
4. Step 4: Simplify right side
   8,454.24x = 105,580,886.29
5. Step 5: Solve for x
   x = 105,580,886.29/8,454.24
6. Step 6: Final answer
   x = 12,488.51