Finding the Fourth Proportional to 10,971.69, 16,454.40 and 3,576.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,971.69 : 16,454.40 = 3,576.80 : x
2. Step 2: Convert to fraction form
   10,971.69/16,454.40 = 3,576.80/x
3. Step 3: Cross multiply
   10,971.69x = 16,454.40 × 3,576.80
4. Step 4: Simplify right side
   10,971.69x = 58,854,097.92
5. Step 5: Solve for x
   x = 58,854,097.92/10,971.69
6. Step 6: Final answer
   x = 5,364.18