Finding the Fourth Proportional to 11,697.25, 16,139.64 and 7,446.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,697.25 : 16,139.64 = 7,446.78 : x
2. Step 2: Convert to fraction form
   11,697.25/16,139.64 = 7,446.78/x
3. Step 3: Cross multiply
   11,697.25x = 16,139.64 × 7,446.78
4. Step 4: Simplify right side
   11,697.25x = 120,188,348.36
5. Step 5: Solve for x
   x = 120,188,348.36/11,697.25
6. Step 6: Final answer
   x = 10,274.92