Finding the Fourth Proportional to 8,320.42, 12,477.27 and 4,158.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,320.42 : 12,477.27 = 4,158.82 : x
2. Step 2: Convert to fraction form
   8,320.42/12,477.27 = 4,158.82/x
3. Step 3: Cross multiply
   8,320.42x = 12,477.27 × 4,158.82
4. Step 4: Simplify right side
   8,320.42x = 51,890,720.02
5. Step 5: Solve for x
   x = 51,890,720.02/8,320.42
6. Step 6: Final answer
   x = 6,236.55