Finding the Fourth Proportional to 12,776.57, 19,158.37 and 5,845.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,776.57 : 19,158.37 = 5,845.13 : x
2. Step 2: Convert to fraction form
   12,776.57/19,158.37 = 5,845.13/x
3. Step 3: Cross multiply
   12,776.57x = 19,158.37 × 5,845.13
4. Step 4: Simplify right side
   12,776.57x = 111,983,052.83
5. Step 5: Solve for x
   x = 111,983,052.83/12,776.57
6. Step 6: Final answer
   x = 8,764.72