Finding the Fourth Proportional to 10,408.32, 14,362.71 and 6,429.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,408.32 : 14,362.71 = 6,429.51 : x
2. Step 2: Convert to fraction form
   10,408.32/14,362.71 = 6,429.51/x
3. Step 3: Cross multiply
   10,408.32x = 14,362.71 × 6,429.51
4. Step 4: Simplify right side
   10,408.32x = 92,345,187.57
5. Step 5: Solve for x
   x = 92,345,187.57/10,408.32
6. Step 6: Final answer
   x = 8,872.25