Finding the Fourth Proportional to 9,892.62, 13,651.43 and 5,911.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,892.62 : 13,651.43 = 5,911.38 : x
2. Step 2: Convert to fraction form
   9,892.62/13,651.43 = 5,911.38/x
3. Step 3: Cross multiply
   9,892.62x = 13,651.43 × 5,911.38
4. Step 4: Simplify right side
   9,892.62x = 80,698,760.72
5. Step 5: Solve for x
   x = 80,698,760.72/9,892.62
6. Step 6: Final answer
   x = 8,157.47