Finding the Fourth Proportional to 16,940.56, 23,379.78 and 9,387.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,940.56 : 23,379.78 = 9,387.52 : x
2. Step 2: Convert to fraction form
   16,940.56/23,379.78 = 9,387.52/x
3. Step 3: Cross multiply
   16,940.56x = 23,379.78 × 9,387.52
4. Step 4: Simplify right side
   16,940.56x = 219,478,152.35
5. Step 5: Solve for x
   x = 219,478,152.35/16,940.56
6. Step 6: Final answer
   x = 12,955.78