Finding the Fourth Proportional to 8,892.09, 12,271.09 and 4,913.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,892.09 : 12,271.09 = 4,913.23 : x
2. Step 2: Convert to fraction form
   8,892.09/12,271.09 = 4,913.23/x
3. Step 3: Cross multiply
   8,892.09x = 12,271.09 × 4,913.23
4. Step 4: Simplify right side
   8,892.09x = 60,290,687.52
5. Step 5: Solve for x
   x = 60,290,687.52/8,892.09
6. Step 6: Final answer
   x = 6,780.26