Finding the Fourth Proportional to 12,874.52, 19,311.51 and 4,109.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,874.52 : 19,311.51 = 4,109.29 : x
2. Step 2: Convert to fraction form
   12,874.52/19,311.51 = 4,109.29/x
3. Step 3: Cross multiply
   12,874.52x = 19,311.51 × 4,109.29
4. Step 4: Simplify right side
   12,874.52x = 79,356,498.37
5. Step 5: Solve for x
   x = 79,356,498.37/12,874.52
6. Step 6: Final answer
   x = 6,163.84