Finding the Fourth Proportional to 8,432.12, 12,650.24 and 3,992.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,432.12 : 12,650.24 = 3,992.82 : x
2. Step 2: Convert to fraction form
   8,432.12/12,650.24 = 3,992.82/x
3. Step 3: Cross multiply
   8,432.12x = 12,650.24 × 3,992.82
4. Step 4: Simplify right side
   8,432.12x = 50,510,131.28
5. Step 5: Solve for x
   x = 50,510,131.28/8,432.12
6. Step 6: Final answer
   x = 5,990.21