Finding the Fourth Proportional to 21,116.72, 31,675.32 and 5,535.92

Step by Step Solution

1. Step 1: Write the proportion equation
   21,116.72 : 31,675.32 = 5,535.92 : x
2. Step 2: Convert to fraction form
   21,116.72/31,675.32 = 5,535.92/x
3. Step 3: Cross multiply
   21,116.72x = 31,675.32 × 5,535.92
4. Step 4: Simplify right side
   21,116.72x = 175,352,037.49
5. Step 5: Solve for x
   x = 175,352,037.49/21,116.72
6. Step 6: Final answer
   x = 8,303.94