Finding the Fourth Proportional to 16,877.72, 25,315.94 and 5,190.62

Step by Step Solution

1. Step 1: Write the proportion equation
   16,877.72 : 25,315.94 = 5,190.62 : x
2. Step 2: Convert to fraction form
   16,877.72/25,315.94 = 5,190.62/x
3. Step 3: Cross multiply
   16,877.72x = 25,315.94 × 5,190.62
4. Step 4: Simplify right side
   16,877.72x = 131,405,424.48
5. Step 5: Solve for x
   x = 131,405,424.48/16,877.72
6. Step 6: Final answer
   x = 7,785.73