Finding the Fourth Proportional to 10,997.52, 16,492.17 and 4,421.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,997.52 : 16,492.17 = 4,421.49 : x
2. Step 2: Convert to fraction form
   10,997.52/16,492.17 = 4,421.49/x
3. Step 3: Cross multiply
   10,997.52x = 16,492.17 × 4,421.49
4. Step 4: Simplify right side
   10,997.52x = 72,919,919.47
5. Step 5: Solve for x
   x = 72,919,919.47/10,997.52
6. Step 6: Final answer
   x = 6,630.58