Finding the Fourth Proportional to 9,103.65, 12,558.82 and 6,581.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.65 : 12,558.82 = 6,581.76 : x
2. Step 2: Convert to fraction form
   9,103.65/12,558.82 = 6,581.76/x
3. Step 3: Cross multiply
   9,103.65x = 12,558.82 × 6,581.76
4. Step 4: Simplify right side
   9,103.65x = 82,659,139.12
5. Step 5: Solve for x
   x = 82,659,139.12/9,103.65
6. Step 6: Final answer
   x = 9,079.78