Finding the Fourth Proportional to 9,148.17, 12,626.55 and 5,171.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,148.17 : 12,626.55 = 5,171.59 : x
2. Step 2: Convert to fraction form
   9,148.17/12,626.55 = 5,171.59/x
3. Step 3: Cross multiply
   9,148.17x = 12,626.55 × 5,171.59
4. Step 4: Simplify right side
   9,148.17x = 65,299,313.86
5. Step 5: Solve for x
   x = 65,299,313.86/9,148.17
6. Step 6: Final answer
   x = 7,137.96