Finding the Fourth Proportional to 7,815.72, 11,725.50 and 3,597

Step by Step Solution

1. Step 1: Write the proportion equation
   7,815.72 : 11,725.50 = 3,597 : x
2. Step 2: Convert to fraction form
   7,815.72/11,725.50 = 3,597/x
3. Step 3: Cross multiply
   7,815.72x = 11,725.50 × 3,597
4. Step 4: Simplify right side
   7,815.72x = 42,176,623.50
5. Step 5: Solve for x
   x = 42,176,623.50/7,815.72
6. Step 6: Final answer
   x = 5,396.38