Finding the Fourth Proportional to 16,173.50, 22,318.89 and 9,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,173.50 : 22,318.89 = 9,099.50 : x
2. Step 2: Convert to fraction form
   16,173.50/22,318.89 = 9,099.50/x
3. Step 3: Cross multiply
   16,173.50x = 22,318.89 × 9,099.50
4. Step 4: Simplify right side
   16,173.50x = 203,090,739.56
5. Step 5: Solve for x
   x = 203,090,739.56/16,173.50
6. Step 6: Final answer
   x = 12,557.01