Finding the Fourth Proportional to 11,325.83, 16,979.76 and 5,399.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,325.83 : 16,979.76 = 5,399.60 : x
2. Step 2: Convert to fraction form
   11,325.83/16,979.76 = 5,399.60/x
3. Step 3: Cross multiply
   11,325.83x = 16,979.76 × 5,399.60
4. Step 4: Simplify right side
   11,325.83x = 91,683,827.20
5. Step 5: Solve for x
   x = 91,683,827.20/11,325.83
6. Step 6: Final answer
   x = 8,095.11