Finding the Fourth Proportional to 11,406.38, 17,120.33 and 5,863.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,406.38 : 17,120.33 = 5,863.61 : x
2. Step 2: Convert to fraction form
   11,406.38/17,120.33 = 5,863.61/x
3. Step 3: Cross multiply
   11,406.38x = 17,120.33 × 5,863.61
4. Step 4: Simplify right side
   11,406.38x = 100,386,938.19
5. Step 5: Solve for x
   x = 100,386,938.19/11,406.38
6. Step 6: Final answer
   x = 8,800.95