Finding the Fourth Proportional to 16,864.82, 25,297.96 and 5,178.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,864.82 : 25,297.96 = 5,178.50 : x
2. Step 2: Convert to fraction form
   16,864.82/25,297.96 = 5,178.50/x
3. Step 3: Cross multiply
   16,864.82x = 25,297.96 × 5,178.50
4. Step 4: Simplify right side
   16,864.82x = 131,005,485.86
5. Step 5: Solve for x
   x = 131,005,485.86/16,864.82
6. Step 6: Final answer
   x = 7,767.97