Finding the Fourth Proportional to 8,280.58, 12,419.79 and 3,662.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,280.58 : 12,419.79 = 3,662.50 : x
2. Step 2: Convert to fraction form
   8,280.58/12,419.79 = 3,662.50/x
3. Step 3: Cross multiply
   8,280.58x = 12,419.79 × 3,662.50
4. Step 4: Simplify right side
   8,280.58x = 45,487,480.88
5. Step 5: Solve for x
   x = 45,487,480.88/8,280.58
6. Step 6: Final answer
   x = 5,493.27