Finding the Fourth Proportional to 8,308.83, 12,464.55 and 3,378.90

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308.83 : 12,464.55 = 3,378.90 : x
2. Step 2: Convert to fraction form
   8,308.83/12,464.55 = 3,378.90/x
3. Step 3: Cross multiply
   8,308.83x = 12,464.55 × 3,378.90
4. Step 4: Simplify right side
   8,308.83x = 42,116,468.00
5. Step 5: Solve for x
   x = 42,116,468.00/8,308.83
6. Step 6: Final answer
   x = 5,068.88