Finding the Fourth Proportional to 8,324.30, 12,486.21 and 3,392.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,324.30 : 12,486.21 = 3,392.72 : x
2. Step 2: Convert to fraction form
   8,324.30/12,486.21 = 3,392.72/x
3. Step 3: Cross multiply
   8,324.30x = 12,486.21 × 3,392.72
4. Step 4: Simplify right side
   8,324.30x = 42,362,214.39
5. Step 5: Solve for x
   x = 42,362,214.39/8,324.30
6. Step 6: Final answer
   x = 5,088.98