Finding the Fourth Proportional to 9,686.27, 14,528.05 and 3,111.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,686.27 : 14,528.05 = 3,111.62 : x
2. Step 2: Convert to fraction form
   9,686.27/14,528.05 = 3,111.62/x
3. Step 3: Cross multiply
   9,686.27x = 14,528.05 × 3,111.62
4. Step 4: Simplify right side
   9,686.27x = 45,205,690.52
5. Step 5: Solve for x
   x = 45,205,690.52/9,686.27
6. Step 6: Final answer
   x = 4,666.99