Finding the Fourth Proportional to 30,993.56, 42,772.01 and 17,564.37

Step by Step Solution

1. Step 1: Write the proportion equation
   30,993.56 : 42,772.01 = 17,564.37 : x
2. Step 2: Convert to fraction form
   30,993.56/42,772.01 = 17,564.37/x
3. Step 3: Cross multiply
   30,993.56x = 42,772.01 × 17,564.37
4. Step 4: Simplify right side
   30,993.56x = 751,263,409.28
5. Step 5: Solve for x
   x = 751,263,409.28/30,993.56
6. Step 6: Final answer
   x = 24,239.34