Finding the Fourth Proportional to 11,026.42, 15,216.45 and 5,990.65

Step by Step Solution

1. Step 1: Write the proportion equation
   11,026.42 : 15,216.45 = 5,990.65 : x
2. Step 2: Convert to fraction form
   11,026.42/15,216.45 = 5,990.65/x
3. Step 3: Cross multiply
   11,026.42x = 15,216.45 × 5,990.65
4. Step 4: Simplify right side
   11,026.42x = 91,156,426.19
5. Step 5: Solve for x
   x = 91,156,426.19/11,026.42
6. Step 6: Final answer
   x = 8,267.09