Finding the Fourth Proportional to 8,771.90, 12,103.83 and 4,992.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,771.90 : 12,103.83 = 4,992.94 : x
2. Step 2: Convert to fraction form
   8,771.90/12,103.83 = 4,992.94/x
3. Step 3: Cross multiply
   8,771.90x = 12,103.83 × 4,992.94
4. Step 4: Simplify right side
   8,771.90x = 60,433,712.09
5. Step 5: Solve for x
   x = 60,433,712.09/8,771.90
6. Step 6: Final answer
   x = 6,889.47