Finding the Fourth Proportional to 11,229.47, 16,836.69 and 5,382.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,229.47 : 16,836.69 = 5,382.89 : x
2. Step 2: Convert to fraction form
   11,229.47/16,836.69 = 5,382.89/x
3. Step 3: Cross multiply
   11,229.47x = 16,836.69 × 5,382.89
4. Step 4: Simplify right side
   11,229.47x = 90,630,050.23
5. Step 5: Solve for x
   x = 90,630,050.23/11,229.47
6. Step 6: Final answer
   x = 8,070.73