Finding the Fourth Proportional to 6,721.89, 9,276.15 and 3,737.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,721.89 : 9,276.15 = 3,737.69 : x
2. Step 2: Convert to fraction form
   6,721.89/9,276.15 = 3,737.69/x
3. Step 3: Cross multiply
   6,721.89x = 9,276.15 × 3,737.69
4. Step 4: Simplify right side
   6,721.89x = 34,671,373.09
5. Step 5: Solve for x
   x = 34,671,373.09/6,721.89
6. Step 6: Final answer
   x = 5,157.98