Finding the Fourth Proportional to 10,686.58, 16,015.91 and 7,734.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.58 : 16,015.91 = 7,734.96 : x
2. Step 2: Convert to fraction form
   10,686.58/16,015.91 = 7,734.96/x
3. Step 3: Cross multiply
   10,686.58x = 16,015.91 × 7,734.96
4. Step 4: Simplify right side
   10,686.58x = 123,882,384.54
5. Step 5: Solve for x
   x = 123,882,384.54/10,686.58
6. Step 6: Final answer
   x = 11,592.33