Finding the Fourth Proportional to 10,904.34, 16,359.16 and 3,509.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,904.34 : 16,359.16 = 3,509.50 : x
2. Step 2: Convert to fraction form
   10,904.34/16,359.16 = 3,509.50/x
3. Step 3: Cross multiply
   10,904.34x = 16,359.16 × 3,509.50
4. Step 4: Simplify right side
   10,904.34x = 57,412,472.02
5. Step 5: Solve for x
   x = 57,412,472.02/10,904.34
6. Step 6: Final answer
   x = 5,265.10