Finding the Fourth Proportional to 10,885.59, 16,317.99 and 3,485.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,885.59 : 16,317.99 = 3,485.36 : x
2. Step 2: Convert to fraction form
   10,885.59/16,317.99 = 3,485.36/x
3. Step 3: Cross multiply
   10,885.59x = 16,317.99 × 3,485.36
4. Step 4: Simplify right side
   10,885.59x = 56,874,110.42
5. Step 5: Solve for x
   x = 56,874,110.42/10,885.59
6. Step 6: Final answer
   x = 5,224.72