Finding the Fourth Proportional to 12,766.30, 19,150.62 and 5,369.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,766.30 : 19,150.62 = 5,369.38 : x
2. Step 2: Convert to fraction form
   12,766.30/19,150.62 = 5,369.38/x
3. Step 3: Cross multiply
   12,766.30x = 19,150.62 × 5,369.38
4. Step 4: Simplify right side
   12,766.30x = 102,826,956.02
5. Step 5: Solve for x
   x = 102,826,956.02/12,766.30
6. Step 6: Final answer
   x = 8,054.56