Finding the Fourth Proportional to 16,780.50, 23,151.42 and 9,704.34

Step by Step Solution

1. Step 1: Write the proportion equation
   16,780.50 : 23,151.42 = 9,704.34 : x
2. Step 2: Convert to fraction form
   16,780.50/23,151.42 = 9,704.34/x
3. Step 3: Cross multiply
   16,780.50x = 23,151.42 × 9,704.34
4. Step 4: Simplify right side
   16,780.50x = 224,669,251.16
5. Step 5: Solve for x
   x = 224,669,251.16/16,780.50
6. Step 6: Final answer
   x = 13,388.71