Finding the Fourth Proportional to 12,776.69, 19,158.55 and 5,845.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,776.69 : 19,158.55 = 5,845.25 : x
2. Step 2: Convert to fraction form
   12,776.69/19,158.55 = 5,845.25/x
3. Step 3: Cross multiply
   12,776.69x = 19,158.55 × 5,845.25
4. Step 4: Simplify right side
   12,776.69x = 111,986,514.39
5. Step 5: Solve for x
   x = 111,986,514.39/12,776.69
6. Step 6: Final answer
   x = 8,764.91