Finding the Fourth Proportional to 11,025.99, 15,216.04 and 5,990.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,025.99 : 15,216.04 = 5,990.31 : x
2. Step 2: Convert to fraction form
   11,025.99/15,216.04 = 5,990.31/x
3. Step 3: Cross multiply
   11,025.99x = 15,216.04 × 5,990.31
4. Step 4: Simplify right side
   11,025.99x = 91,148,781.60
5. Step 5: Solve for x
   x = 91,148,781.60/11,025.99
6. Step 6: Final answer
   x = 8,266.72