Finding the Fourth Proportional to 8,520.14, 12,784.82 and 3,593.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,520.14 : 12,784.82 = 3,593.21 : x
2. Step 2: Convert to fraction form
   8,520.14/12,784.82 = 3,593.21/x
3. Step 3: Cross multiply
   8,520.14x = 12,784.82 × 3,593.21
4. Step 4: Simplify right side
   8,520.14x = 45,938,461.18
5. Step 5: Solve for x
   x = 45,938,461.18/8,520.14
6. Step 6: Final answer
   x = 5,391.75