Finding the Fourth Proportional to 8,321.15, 12,483.84 and 2,477.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,321.15 : 12,483.84 = 2,477.81 : x
2. Step 2: Convert to fraction form
   8,321.15/12,483.84 = 2,477.81/x
3. Step 3: Cross multiply
   8,321.15x = 12,483.84 × 2,477.81
4. Step 4: Simplify right side
   8,321.15x = 30,932,583.59
5. Step 5: Solve for x
   x = 30,932,583.59/8,321.15
6. Step 6: Final answer
   x = 3,717.34