Finding the Fourth Proportional to 30,880.41, 42,615 and 16,733.27

Step by Step Solution

1. Step 1: Write the proportion equation
   30,880.41 : 42,615 = 16,733.27 : x
2. Step 2: Convert to fraction form
   30,880.41/42,615 = 16,733.27/x
3. Step 3: Cross multiply
   30,880.41x = 42,615 × 16,733.27
4. Step 4: Simplify right side
   30,880.41x = 713,088,087.98
5. Step 5: Solve for x
   x = 713,088,087.98/30,880.41
6. Step 6: Final answer
   x = 23,091.92