Finding the Fourth Proportional to 11,099.33, 16,639.27 and 4,178.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,099.33 : 16,639.27 = 4,178.69 : x
2. Step 2: Convert to fraction form
   11,099.33/16,639.27 = 4,178.69/x
3. Step 3: Cross multiply
   11,099.33x = 16,639.27 × 4,178.69
4. Step 4: Simplify right side
   11,099.33x = 69,530,343.42
5. Step 5: Solve for x
   x = 69,530,343.42/11,099.33
6. Step 6: Final answer
   x = 6,264.37