Finding the Fourth Proportional to 21,162.94, 31,759.02 and 7,311.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,162.94 : 31,759.02 = 7,311.94 : x
2. Step 2: Convert to fraction form
   21,162.94/31,759.02 = 7,311.94/x
3. Step 3: Cross multiply
   21,162.94x = 31,759.02 × 7,311.94
4. Step 4: Simplify right side
   21,162.94x = 232,219,969.30
5. Step 5: Solve for x
   x = 232,219,969.30/21,162.94
6. Step 6: Final answer
   x = 10,972.96