Finding the Fourth Proportional to 11,996.71, 16,563.62 and 7,758.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,996.71 : 16,563.62 = 7,758.02 : x
2. Step 2: Convert to fraction form
   11,996.71/16,563.62 = 7,758.02/x
3. Step 3: Cross multiply
   11,996.71x = 16,563.62 × 7,758.02
4. Step 4: Simplify right side
   11,996.71x = 128,500,956.04
5. Step 5: Solve for x
   x = 128,500,956.04/11,996.71
6. Step 6: Final answer
   x = 10,711.35