Finding the Fourth Proportional to 5,737.74, 7,914.72 and 3,609.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,737.74 : 7,914.72 = 3,609.91 : x
2. Step 2: Convert to fraction form
   5,737.74/7,914.72 = 3,609.91/x
3. Step 3: Cross multiply
   5,737.74x = 7,914.72 × 3,609.91
4. Step 4: Simplify right side
   5,737.74x = 28,571,426.88
5. Step 5: Solve for x
   x = 28,571,426.88/5,737.74
6. Step 6: Final answer
   x = 4,979.56