Finding the Fourth Proportional to 30,643.49, 42,288.59 and 17,032.81

Step by Step Solution

1. Step 1: Write the proportion equation
   30,643.49 : 42,288.59 = 17,032.81 : x
2. Step 2: Convert to fraction form
   30,643.49/42,288.59 = 17,032.81/x
3. Step 3: Cross multiply
   30,643.49x = 42,288.59 × 17,032.81
4. Step 4: Simplify right side
   30,643.49x = 720,293,327.75
5. Step 5: Solve for x
   x = 720,293,327.75/30,643.49
6. Step 6: Final answer
   x = 23,505.59