Finding the Fourth Proportional to 20,933.16, 31,411.98 and 7,794.84

Step by Step Solution

1. Step 1: Write the proportion equation
   20,933.16 : 31,411.98 = 7,794.84 : x
2. Step 2: Convert to fraction form
   20,933.16/31,411.98 = 7,794.84/x
3. Step 3: Cross multiply
   20,933.16x = 31,411.98 × 7,794.84
4. Step 4: Simplify right side
   20,933.16x = 244,851,358.18
5. Step 5: Solve for x
   x = 244,851,358.18/20,933.16
6. Step 6: Final answer
   x = 11,696.82