Finding the Fourth Proportional to 23,859.69, 35,789.87 and 7,219.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,859.69 : 35,789.87 = 7,219.86 : x
2. Step 2: Convert to fraction form
   23,859.69/35,789.87 = 7,219.86/x
3. Step 3: Cross multiply
   23,859.69x = 35,789.87 × 7,219.86
4. Step 4: Simplify right side
   23,859.69x = 258,397,850.82
5. Step 5: Solve for x
   x = 258,397,850.82/23,859.69
6. Step 6: Final answer
   x = 10,829.89