Finding the Fourth Proportional to 14,064.30, 19,408.50 and 7,776.54

Step by Step Solution

1. Step 1: Write the proportion equation
   14,064.30 : 19,408.50 = 7,776.54 : x
2. Step 2: Convert to fraction form
   14,064.30/19,408.50 = 7,776.54/x
3. Step 3: Cross multiply
   14,064.30x = 19,408.50 × 7,776.54
4. Step 4: Simplify right side
   14,064.30x = 150,930,976.59
5. Step 5: Solve for x
   x = 150,930,976.59/14,064.30
6. Step 6: Final answer
   x = 10,731.50