Finding the Fourth Proportional to 30,612.37, 42,247.47 and 17,182.78

Step by Step Solution

1. Step 1: Write the proportion equation
   30,612.37 : 42,247.47 = 17,182.78 : x
2. Step 2: Convert to fraction form
   30,612.37/42,247.47 = 17,182.78/x
3. Step 3: Cross multiply
   30,612.37x = 42,247.47 × 17,182.78
4. Step 4: Simplify right side
   30,612.37x = 725,928,982.57
5. Step 5: Solve for x
   x = 725,928,982.57/30,612.37
6. Step 6: Final answer
   x = 23,713.58