Finding the Fourth Proportional to 30,453.28, 42,022.83 and 17,022.76

Step by Step Solution

1. Step 1: Write the proportion equation
   30,453.28 : 42,022.83 = 17,022.76 : x
2. Step 2: Convert to fraction form
   30,453.28/42,022.83 = 17,022.76/x
3. Step 3: Cross multiply
   30,453.28x = 42,022.83 × 17,022.76
4. Step 4: Simplify right side
   30,453.28x = 715,344,549.61
5. Step 5: Solve for x
   x = 715,344,549.61/30,453.28
6. Step 6: Final answer
   x = 23,489.90