Finding the Fourth Proportional to 30,780.92, 42,474.42 and 17,351.84

Step by Step Solution

1. Step 1: Write the proportion equation
   30,780.92 : 42,474.42 = 17,351.84 : x
2. Step 2: Convert to fraction form
   30,780.92/42,474.42 = 17,351.84/x
3. Step 3: Cross multiply
   30,780.92x = 42,474.42 × 17,351.84
4. Step 4: Simplify right side
   30,780.92x = 737,009,339.93
5. Step 5: Solve for x
   x = 737,009,339.93/30,780.92
6. Step 6: Final answer
   x = 23,943.71