Finding the Fourth Proportional to 16,188.39, 22,340.69 and 9,114.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,188.39 : 22,340.69 = 9,114.81 : x
2. Step 2: Convert to fraction form
   16,188.39/22,340.69 = 9,114.81/x
3. Step 3: Cross multiply
   16,188.39x = 22,340.69 × 9,114.81
4. Step 4: Simplify right side
   16,188.39x = 203,631,099.04
5. Step 5: Solve for x
   x = 203,631,099.04/16,188.39
6. Step 6: Final answer
   x = 12,578.84