Finding the Fourth Proportional to 10,991.03, 16,487.69 and 3,199.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,991.03 : 16,487.69 = 3,199.84 : x
2. Step 2: Convert to fraction form
   10,991.03/16,487.69 = 3,199.84/x
3. Step 3: Cross multiply
   10,991.03x = 16,487.69 × 3,199.84
4. Step 4: Simplify right side
   10,991.03x = 52,757,912.75
5. Step 5: Solve for x
   x = 52,757,912.75/10,991.03
6. Step 6: Final answer
   x = 4,800.09