Finding the Fourth Proportional to 9,043.57, 12,492.71 and 6,822.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,043.57 : 12,492.71 = 6,822.55 : x
2. Step 2: Convert to fraction form
   9,043.57/12,492.71 = 6,822.55/x
3. Step 3: Cross multiply
   9,043.57x = 12,492.71 × 6,822.55
4. Step 4: Simplify right side
   9,043.57x = 85,232,104.50
5. Step 5: Solve for x
   x = 85,232,104.50/9,043.57
6. Step 6: Final answer
   x = 9,424.61