Finding the Fourth Proportional to 8,871.56, 12,242.46 and 4,892.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,871.56 : 12,242.46 = 4,892.12 : x
2. Step 2: Convert to fraction form
   8,871.56/12,242.46 = 4,892.12/x
3. Step 3: Cross multiply
   8,871.56x = 12,242.46 × 4,892.12
4. Step 4: Simplify right side
   8,871.56x = 59,891,583.42
5. Step 5: Solve for x
   x = 59,891,583.42/8,871.56
6. Step 6: Final answer
   x = 6,750.96