Finding the Fourth Proportional to 14,401, 19,865.32 and 8,431.52

Step by Step Solution

1. Step 1: Write the proportion equation
   14,401 : 19,865.32 = 8,431.52 : x
2. Step 2: Convert to fraction form
   14,401/19,865.32 = 8,431.52/x
3. Step 3: Cross multiply
   14,401x = 19,865.32 × 8,431.52
4. Step 4: Simplify right side
   14,401x = 167,494,842.89
5. Step 5: Solve for x
   x = 167,494,842.89/14,401
6. Step 6: Final answer
   x = 11,630.78