Finding the Fourth Proportional to 11,704.87, 16,158.59 and 7,947.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,704.87 : 16,158.59 = 7,947.91 : x
2. Step 2: Convert to fraction form
   11,704.87/16,158.59 = 7,947.91/x
3. Step 3: Cross multiply
   11,704.87x = 16,158.59 × 7,947.91
4. Step 4: Simplify right side
   11,704.87x = 128,427,019.05
5. Step 5: Solve for x
   x = 128,427,019.05/11,704.87
6. Step 6: Final answer
   x = 10,972.10