Finding the Fourth Proportional to 8,120.41, 12,179.82 and 5,504.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,120.41 : 12,179.82 = 5,504.72 : x
2. Step 2: Convert to fraction form
   8,120.41/12,179.82 = 5,504.72/x
3. Step 3: Cross multiply
   8,120.41x = 12,179.82 × 5,504.72
4. Step 4: Simplify right side
   8,120.41x = 67,046,484.99
5. Step 5: Solve for x
   x = 67,046,484.99/8,120.41
6. Step 6: Final answer
   x = 8,256.54