Finding the Fourth Proportional to 9,892.27, 13,650.99 and 5,911.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,892.27 : 13,650.99 = 5,911.03 : x
2. Step 2: Convert to fraction form
   9,892.27/13,650.99 = 5,911.03/x
3. Step 3: Cross multiply
   9,892.27x = 13,650.99 × 5,911.03
4. Step 4: Simplify right side
   9,892.27x = 80,691,411.42
5. Step 5: Solve for x
   x = 80,691,411.42/9,892.27
6. Step 6: Final answer
   x = 8,157.02