Finding the Fourth Proportional to 11,704.72, 16,152.82 and 6,991.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,704.72 : 16,152.82 = 6,991.72 : x
2. Step 2: Convert to fraction form
   11,704.72/16,152.82 = 6,991.72/x
3. Step 3: Cross multiply
   11,704.72x = 16,152.82 × 6,991.72
4. Step 4: Simplify right side
   11,704.72x = 112,935,994.65
5. Step 5: Solve for x
   x = 112,935,994.65/11,704.72
6. Step 6: Final answer
   x = 9,648.76