Finding the Fourth Proportional to 6,587.76, 9,882.72 and 3,123.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,587.76 : 9,882.72 = 3,123.12 : x
2. Step 2: Convert to fraction form
   6,587.76/9,882.72 = 3,123.12/x
3. Step 3: Cross multiply
   6,587.76x = 9,882.72 × 3,123.12
4. Step 4: Simplify right side
   6,587.76x = 30,864,920.49
5. Step 5: Solve for x
   x = 30,864,920.49/6,587.76
6. Step 6: Final answer
   x = 4,685.19