Finding the Fourth Proportional to 7,358.72, 10,152.45 and 4,171.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,358.72 : 10,152.45 = 4,171.55 : x
2. Step 2: Convert to fraction form
   7,358.72/10,152.45 = 4,171.55/x
3. Step 3: Cross multiply
   7,358.72x = 10,152.45 × 4,171.55
4. Step 4: Simplify right side
   7,358.72x = 42,351,402.04
5. Step 5: Solve for x
   x = 42,351,402.04/7,358.72
6. Step 6: Final answer
   x = 5,755.27