Finding the Fourth Proportional to 10,904.52, 16,359.20 and 3,979

Step by Step Solution

1. Step 1: Write the proportion equation
   10,904.52 : 16,359.20 = 3,979 : x
2. Step 2: Convert to fraction form
   10,904.52/16,359.20 = 3,979/x
3. Step 3: Cross multiply
   10,904.52x = 16,359.20 × 3,979
4. Step 4: Simplify right side
   10,904.52x = 65,093,256.80
5. Step 5: Solve for x
   x = 65,093,256.80/10,904.52
6. Step 6: Final answer
   x = 5,969.38