Finding the Fourth Proportional to 10,472.72, 14,438.94 and 8,577.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,472.72 : 14,438.94 = 8,577.32 : x
2. Step 2: Convert to fraction form
   10,472.72/14,438.94 = 8,577.32/x
3. Step 3: Cross multiply
   10,472.72x = 14,438.94 × 8,577.32
4. Step 4: Simplify right side
   10,472.72x = 123,847,408.84
5. Step 5: Solve for x
   x = 123,847,408.84/10,472.72
6. Step 6: Final answer
   x = 11,825.72