Finding the Fourth Proportional to 3,175.74, 4,343.63 and 3,124.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,175.74 : 4,343.63 = 3,124.71 : x
2. Step 2: Convert to fraction form
   3,175.74/4,343.63 = 3,124.71/x
3. Step 3: Cross multiply
   3,175.74x = 4,343.63 × 3,124.71
4. Step 4: Simplify right side
   3,175.74x = 13,572,568.47
5. Step 5: Solve for x
   x = 13,572,568.47/3,175.74
6. Step 6: Final answer
   x = 4,273.83