Finding the Fourth Proportional to 22,820.72, 34,236.54 and 7,238.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,820.72 : 34,236.54 = 7,238.34 : x
2. Step 2: Convert to fraction form
   22,820.72/34,236.54 = 7,238.34/x
3. Step 3: Cross multiply
   22,820.72x = 34,236.54 × 7,238.34
4. Step 4: Simplify right side
   22,820.72x = 247,815,716.94
5. Step 5: Solve for x
   x = 247,815,716.94/22,820.72
6. Step 6: Final answer
   x = 10,859.24