Finding the Fourth Proportional to 12,846.80, 19,271.10 and 5,450.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,846.80 : 19,271.10 = 5,450.42 : x
2. Step 2: Convert to fraction form
   12,846.80/19,271.10 = 5,450.42/x
3. Step 3: Cross multiply
   12,846.80x = 19,271.10 × 5,450.42
4. Step 4: Simplify right side
   12,846.80x = 105,035,588.86
5. Step 5: Solve for x
   x = 105,035,588.86/12,846.80
6. Step 6: Final answer
   x = 8,176.01