Finding the Fourth Proportional to 12,776.54, 19,169.55 and 5,754.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,776.54 : 19,169.55 = 5,754.42 : x
2. Step 2: Convert to fraction form
   12,776.54/19,169.55 = 5,754.42/x
3. Step 3: Cross multiply
   12,776.54x = 19,169.55 × 5,754.42
4. Step 4: Simplify right side
   12,776.54x = 110,309,641.91
5. Step 5: Solve for x
   x = 110,309,641.91/12,776.54
6. Step 6: Final answer
   x = 8,633.77