Finding the Fourth Proportional to 10,098.59, 15,150.97 and 5,171.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,098.59 : 15,150.97 = 5,171.71 : x
2. Step 2: Convert to fraction form
   10,098.59/15,150.97 = 5,171.71/x
3. Step 3: Cross multiply
   10,098.59x = 15,150.97 × 5,171.71
4. Step 4: Simplify right side
   10,098.59x = 78,356,397.20
5. Step 5: Solve for x
   x = 78,356,397.20/10,098.59
6. Step 6: Final answer
   x = 7,759.15