Finding the Fourth Proportional to 6,737.72, 10,108.22 and 2,120.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,737.72 : 10,108.22 = 2,120.72 : x
2. Step 2: Convert to fraction form
   6,737.72/10,108.22 = 2,120.72/x
3. Step 3: Cross multiply
   6,737.72x = 10,108.22 × 2,120.72
4. Step 4: Simplify right side
   6,737.72x = 21,436,704.32
5. Step 5: Solve for x
   x = 21,436,704.32/6,737.72
6. Step 6: Final answer
   x = 3,181.60