Finding the Fourth Proportional to 8,333.21, 12,503.27 and 3,650.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,333.21 : 12,503.27 = 3,650.80 : x
2. Step 2: Convert to fraction form
   8,333.21/12,503.27 = 3,650.80/x
3. Step 3: Cross multiply
   8,333.21x = 12,503.27 × 3,650.80
4. Step 4: Simplify right side
   8,333.21x = 45,646,919.86
5. Step 5: Solve for x
   x = 45,646,919.86/8,333.21
6. Step 6: Final answer
   x = 5,477.71