Finding the Fourth Proportional to 23,864.50, 35,789.86 and 7,220.62

Step by Step Solution

1. Step 1: Write the proportion equation
   23,864.50 : 35,789.86 = 7,220.62 : x
2. Step 2: Convert to fraction form
   23,864.50/35,789.86 = 7,220.62/x
3. Step 3: Cross multiply
   23,864.50x = 35,789.86 × 7,220.62
4. Step 4: Simplify right side
   23,864.50x = 258,424,978.91
5. Step 5: Solve for x
   x = 258,424,978.91/23,864.50
6. Step 6: Final answer
   x = 10,828.85