Finding the Fourth Proportional to 30,914.39, 42,661.86 and 17,485.36

Step by Step Solution

1. Step 1: Write the proportion equation
   30,914.39 : 42,661.86 = 17,485.36 : x
2. Step 2: Convert to fraction form
   30,914.39/42,661.86 = 17,485.36/x
3. Step 3: Cross multiply
   30,914.39x = 42,661.86 × 17,485.36
4. Step 4: Simplify right side
   30,914.39x = 745,957,939.29
5. Step 5: Solve for x
   x = 745,957,939.29/30,914.39
6. Step 6: Final answer
   x = 24,129.79