Finding the Fourth Proportional to 16,430.39, 22,674.15 and 9,356.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,430.39 : 22,674.15 = 9,356.84 : x
2. Step 2: Convert to fraction form
   16,430.39/22,674.15 = 9,356.84/x
3. Step 3: Cross multiply
   16,430.39x = 22,674.15 × 9,356.84
4. Step 4: Simplify right side
   16,430.39x = 212,158,280.32
5. Step 5: Solve for x
   x = 212,158,280.32/16,430.39
6. Step 6: Final answer
   x = 12,912.56