Finding the Fourth Proportional to 14,064.21, 19,408.59 and 7,776.59

Step by Step Solution

1. Step 1: Write the proportion equation
   14,064.21 : 19,408.59 = 7,776.59 : x
2. Step 2: Convert to fraction form
   14,064.21/19,408.59 = 7,776.59/x
3. Step 3: Cross multiply
   14,064.21x = 19,408.59 × 7,776.59
4. Step 4: Simplify right side
   14,064.21x = 150,932,549.87
5. Step 5: Solve for x
   x = 150,932,549.87/14,064.21
6. Step 6: Final answer
   x = 10,731.68