Finding the Fourth Proportional to 10,857.32, 16,288.37 and 6,179.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,857.32 : 16,288.37 = 6,179.53 : x
2. Step 2: Convert to fraction form
   10,857.32/16,288.37 = 6,179.53/x
3. Step 3: Cross multiply
   10,857.32x = 16,288.37 × 6,179.53
4. Step 4: Simplify right side
   10,857.32x = 100,654,499.15
5. Step 5: Solve for x
   x = 100,654,499.15/10,857.32
6. Step 6: Final answer
   x = 9,270.66