Finding the Fourth Proportional to 9,686.49, 14,528.36 and 3,111.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,686.49 : 14,528.36 = 3,111.83 : x
2. Step 2: Convert to fraction form
   9,686.49/14,528.36 = 3,111.83/x
3. Step 3: Cross multiply
   9,686.49x = 14,528.36 × 3,111.83
4. Step 4: Simplify right side
   9,686.49x = 45,209,698.30
5. Step 5: Solve for x
   x = 45,209,698.30/9,686.49
6. Step 6: Final answer
   x = 4,667.29