Finding the Fourth Proportional to 11,686.50, 16,127.40 and 7,494.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,686.50 : 16,127.40 = 7,494.76 : x
2. Step 2: Convert to fraction form
   11,686.50/16,127.40 = 7,494.76/x
3. Step 3: Cross multiply
   11,686.50x = 16,127.40 × 7,494.76
4. Step 4: Simplify right side
   11,686.50x = 120,870,992.42
5. Step 5: Solve for x
   x = 120,870,992.42/11,686.50
6. Step 6: Final answer
   x = 10,342.79