Finding the Fourth Proportional to 16,192.70, 22,345.98 and 9,388.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,192.70 : 22,345.98 = 9,388.05 : x
2. Step 2: Convert to fraction form
   16,192.70/22,345.98 = 9,388.05/x
3. Step 3: Cross multiply
   16,192.70x = 22,345.98 × 9,388.05
4. Step 4: Simplify right side
   16,192.70x = 209,785,177.54
5. Step 5: Solve for x
   x = 209,785,177.54/16,192.70
6. Step 6: Final answer
   x = 12,955.54