Finding the Fourth Proportional to 10,881.24, 16,321.68 and 3,485.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,881.24 : 16,321.68 = 3,485.58 : x
2. Step 2: Convert to fraction form
   10,881.24/16,321.68 = 3,485.58/x
3. Step 3: Cross multiply
   10,881.24x = 16,321.68 × 3,485.58
4. Step 4: Simplify right side
   10,881.24x = 56,890,521.37
5. Step 5: Solve for x
   x = 56,890,521.37/10,881.24
6. Step 6: Final answer
   x = 5,228.31