Finding the Fourth Proportional to 8,768.88, 12,099.42 and 5,414.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,768.88 : 12,099.42 = 5,414.58 : x
2. Step 2: Convert to fraction form
   8,768.88/12,099.42 = 5,414.58/x
3. Step 3: Cross multiply
   8,768.88x = 12,099.42 × 5,414.58
4. Step 4: Simplify right side
   8,768.88x = 65,513,277.54
5. Step 5: Solve for x
   x = 65,513,277.54/8,768.88
6. Step 6: Final answer
   x = 7,471.11