Finding the Fourth Proportional to 8,697.36, 12,002.96 and 4,920.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,697.36 : 12,002.96 = 4,920.54 : x
2. Step 2: Convert to fraction form
   8,697.36/12,002.96 = 4,920.54/x
3. Step 3: Cross multiply
   8,697.36x = 12,002.96 × 4,920.54
4. Step 4: Simplify right side
   8,697.36x = 59,061,044.80
5. Step 5: Solve for x
   x = 59,061,044.80/8,697.36
6. Step 6: Final answer
   x = 6,790.69