Finding the Fourth Proportional to 12,790.92, 19,182.56 and 5,766.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,790.92 : 19,182.56 = 5,766.88 : x
2. Step 2: Convert to fraction form
   12,790.92/19,182.56 = 5,766.88/x
3. Step 3: Cross multiply
   12,790.92x = 19,182.56 × 5,766.88
4. Step 4: Simplify right side
   12,790.92x = 110,623,521.61
5. Step 5: Solve for x
   x = 110,623,521.61/12,790.92
6. Step 6: Final answer
   x = 8,648.60