Finding the Fourth Proportional to 30,821.00, 42,532.56 and 17,390.39

Step by Step Solution

1. Step 1: Write the proportion equation
   30,821.00 : 42,532.56 = 17,390.39 : x
2. Step 2: Convert to fraction form
   30,821.00/42,532.56 = 17,390.39/x
3. Step 3: Cross multiply
   30,821.00x = 42,532.56 × 17,390.39
4. Step 4: Simplify right side
   30,821.00x = 739,657,593.44
5. Step 5: Solve for x
   x = 739,657,593.44/30,821.00
6. Step 6: Final answer
   x = 23,998.50