Finding the Fourth Proportional to 10,890.86, 16,336.38 and 3,495.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890.86 : 16,336.38 = 3,495.33 : x
2. Step 2: Convert to fraction form
   10,890.86/16,336.38 = 3,495.33/x
3. Step 3: Cross multiply
   10,890.86x = 16,336.38 × 3,495.33
4. Step 4: Simplify right side
   10,890.86x = 57,101,039.11
5. Step 5: Solve for x
   x = 57,101,039.11/10,890.86
6. Step 6: Final answer
   x = 5,243.02