Finding the Fourth Proportional to 8,307.77, 12,464.01 and 3,380.95

Step by Step Solution

1. Step 1: Write the proportion equation
   8,307.77 : 12,464.01 = 3,380.95 : x
2. Step 2: Convert to fraction form
   8,307.77/12,464.01 = 3,380.95/x
3. Step 3: Cross multiply
   8,307.77x = 12,464.01 × 3,380.95
4. Step 4: Simplify right side
   8,307.77x = 42,140,171.90
5. Step 5: Solve for x
   x = 42,140,171.90/8,307.77
6. Step 6: Final answer
   x = 5,072.38