Finding the Fourth Proportional to 21,802.50, 32,708.61 and 7,951.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,802.50 : 32,708.61 = 7,951.50 : x
2. Step 2: Convert to fraction form
   21,802.50/32,708.61 = 7,951.50/x
3. Step 3: Cross multiply
   21,802.50x = 32,708.61 × 7,951.50
4. Step 4: Simplify right side
   21,802.50x = 260,082,512.42
5. Step 5: Solve for x
   x = 260,082,512.42/21,802.50
6. Step 6: Final answer
   x = 11,929.02