Finding the Fourth Proportional to 8,051.83, 12,076.34 and 2,128.77

Step by Step Solution

1. Step 1: Write the proportion equation
   8,051.83 : 12,076.34 = 2,128.77 : x
2. Step 2: Convert to fraction form
   8,051.83/12,076.34 = 2,128.77/x
3. Step 3: Cross multiply
   8,051.83x = 12,076.34 × 2,128.77
4. Step 4: Simplify right side
   8,051.83x = 25,707,769.85
5. Step 5: Solve for x
   x = 25,707,769.85/8,051.83
6. Step 6: Final answer
   x = 3,192.79