Finding the Fourth Proportional to 16,855.72, 25,283.64 and 5,168.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,855.72 : 25,283.64 = 5,168.96 : x
2. Step 2: Convert to fraction form
   16,855.72/25,283.64 = 5,168.96/x
3. Step 3: Cross multiply
   16,855.72x = 25,283.64 × 5,168.96
4. Step 4: Simplify right side
   16,855.72x = 130,690,123.81
5. Step 5: Solve for x
   x = 130,690,123.81/16,855.72
6. Step 6: Final answer
   x = 7,753.46