Finding the Fourth Proportional to 8,321.52, 12,482.12 and 2,477.90

Step by Step Solution

1. Step 1: Write the proportion equation
   8,321.52 : 12,482.12 = 2,477.90 : x
2. Step 2: Convert to fraction form
   8,321.52/12,482.12 = 2,477.90/x
3. Step 3: Cross multiply
   8,321.52x = 12,482.12 × 2,477.90
4. Step 4: Simplify right side
   8,321.52x = 30,929,445.15
5. Step 5: Solve for x
   x = 30,929,445.15/8,321.52
6. Step 6: Final answer
   x = 3,716.80