Finding the Fourth Proportional to 30,716.04, 42,389.50 and 17,288.16

Step by Step Solution

1. Step 1: Write the proportion equation
   30,716.04 : 42,389.50 = 17,288.16 : x
2. Step 2: Convert to fraction form
   30,716.04/42,389.50 = 17,288.16/x
3. Step 3: Cross multiply
   30,716.04x = 42,389.50 × 17,288.16
4. Step 4: Simplify right side
   30,716.04x = 732,836,494.58
5. Step 5: Solve for x
   x = 732,836,494.58/30,716.04
6. Step 6: Final answer
   x = 23,858.43