Finding the Fourth Proportional to 11,097.69, 16,641.32 and 4,072.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,097.69 : 16,641.32 = 4,072.80 : x
2. Step 2: Convert to fraction form
   11,097.69/16,641.32 = 4,072.80/x
3. Step 3: Cross multiply
   11,097.69x = 16,641.32 × 4,072.80
4. Step 4: Simplify right side
   11,097.69x = 67,776,747.73
5. Step 5: Solve for x
   x = 67,776,747.73/11,097.69
6. Step 6: Final answer
   x = 6,107.29