Finding the Fourth Proportional to 11,631.27, 17,432.61 and 5,382.81

Step by Step Solution

1. Step 1: Write the proportion equation
   11,631.27 : 17,432.61 = 5,382.81 : x
2. Step 2: Convert to fraction form
   11,631.27/17,432.61 = 5,382.81/x
3. Step 3: Cross multiply
   11,631.27x = 17,432.61 × 5,382.81
4. Step 4: Simplify right side
   11,631.27x = 93,836,427.43
5. Step 5: Solve for x
   x = 93,836,427.43/11,631.27
6. Step 6: Final answer
   x = 8,067.60