Finding the Fourth Proportional to 30,644.42, 42,287.00 and 17,213.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,644.42 : 42,287.00 = 17,213.06 : x
2. Step 2: Convert to fraction form
   30,644.42/42,287.00 = 17,213.06/x
3. Step 3: Cross multiply
   30,644.42x = 42,287.00 × 17,213.06
4. Step 4: Simplify right side
   30,644.42x = 727,888,687.87
5. Step 5: Solve for x
   x = 727,888,687.87/30,644.42
6. Step 6: Final answer
   x = 23,752.74