Finding the Fourth Proportional to 10,909.86, 16,367.41 and 3,515.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,909.86 : 16,367.41 = 3,515.02 : x
2. Step 2: Convert to fraction form
   10,909.86/16,367.41 = 3,515.02/x
3. Step 3: Cross multiply
   10,909.86x = 16,367.41 × 3,515.02
4. Step 4: Simplify right side
   10,909.86x = 57,531,773.50
5. Step 5: Solve for x
   x = 57,531,773.50/10,909.86
6. Step 6: Final answer
   x = 5,273.37