Finding the Fourth Proportional to 7,358.79, 10,152.87 and 4,171.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,358.79 : 10,152.87 = 4,171.57 : x
2. Step 2: Convert to fraction form
   7,358.79/10,152.87 = 4,171.57/x
3. Step 3: Cross multiply
   7,358.79x = 10,152.87 × 4,171.57
4. Step 4: Simplify right side
   7,358.79x = 42,353,407.91
5. Step 5: Solve for x
   x = 42,353,407.91/7,358.79
6. Step 6: Final answer
   x = 5,755.49