Finding the Fourth Proportional to 13,797, 20,662.56 and 7,941.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,797 : 20,662.56 = 7,941.31 : x
2. Step 2: Convert to fraction form
   13,797/20,662.56 = 7,941.31/x
3. Step 3: Cross multiply
   13,797x = 20,662.56 × 7,941.31
4. Step 4: Simplify right side
   13,797x = 164,087,742.70
5. Step 5: Solve for x
   x = 164,087,742.70/13,797
6. Step 6: Final answer
   x = 11,893.00