Finding the Fourth Proportional to 12,766.09, 19,156.63 and 5,369.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,766.09 : 19,156.63 = 5,369.98 : x
2. Step 2: Convert to fraction form
   12,766.09/19,156.63 = 5,369.98/x
3. Step 3: Cross multiply
   12,766.09x = 19,156.63 × 5,369.98
4. Step 4: Simplify right side
   12,766.09x = 102,870,658.65
5. Step 5: Solve for x
   x = 102,870,658.65/12,766.09
6. Step 6: Final answer
   x = 8,058.12