Finding the Fourth Proportional to 7,222.80, 10,838.76 and 3,937.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,222.80 : 10,838.76 = 3,937.96 : x
2. Step 2: Convert to fraction form
   7,222.80/10,838.76 = 3,937.96/x
3. Step 3: Cross multiply
   7,222.80x = 10,838.76 × 3,937.96
4. Step 4: Simplify right side
   7,222.80x = 42,682,603.33
5. Step 5: Solve for x
   x = 42,682,603.33/7,222.80
6. Step 6: Final answer
   x = 5,909.43