Finding the Fourth Proportional to 30,896.20, 42,636.71 and 16,749.05

Step by Step Solution

1. Step 1: Write the proportion equation
   30,896.20 : 42,636.71 = 16,749.05 : x
2. Step 2: Convert to fraction form
   30,896.20/42,636.71 = 16,749.05/x
3. Step 3: Cross multiply
   30,896.20x = 42,636.71 × 16,749.05
4. Step 4: Simplify right side
   30,896.20x = 714,124,216.31
5. Step 5: Solve for x
   x = 714,124,216.31/30,896.20
6. Step 6: Final answer
   x = 23,113.66