Finding the Fourth Proportional to 16,938.76, 23,375.42 and 9,385.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,938.76 : 23,375.42 = 9,385.10 : x
2. Step 2: Convert to fraction form
   16,938.76/23,375.42 = 9,385.10/x
3. Step 3: Cross multiply
   16,938.76x = 23,375.42 × 9,385.10
4. Step 4: Simplify right side
   16,938.76x = 219,380,654.24
5. Step 5: Solve for x
   x = 219,380,654.24/16,938.76
6. Step 6: Final answer
   x = 12,951.40