Finding the Fourth Proportional to 16,930.86, 23,364.77 and 9,377.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,930.86 : 23,364.77 = 9,377.31 : x
2. Step 2: Convert to fraction form
   16,930.86/23,364.77 = 9,377.31/x
3. Step 3: Cross multiply
   16,930.86x = 23,364.77 × 9,377.31
4. Step 4: Simplify right side
   16,930.86x = 219,098,691.37
5. Step 5: Solve for x
   x = 219,098,691.37/16,930.86
6. Step 6: Final answer
   x = 12,940.79