Finding the Fourth Proportional to 30,644.80, 42,288.24 and 17,216.62

Step by Step Solution

1. Step 1: Write the proportion equation
   30,644.80 : 42,288.24 = 17,216.62 : x
2. Step 2: Convert to fraction form
   30,644.80/42,288.24 = 17,216.62/x
3. Step 3: Cross multiply
   30,644.80x = 42,288.24 × 17,216.62
4. Step 4: Simplify right side
   30,644.80x = 728,060,558.55
5. Step 5: Solve for x
   x = 728,060,558.55/30,644.80
6. Step 6: Final answer
   x = 23,758.05