Finding the Fourth Proportional to 3,131.83, 4,673.23 and 3,113.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,131.83 : 4,673.23 = 3,113.60 : x
2. Step 2: Convert to fraction form
   3,131.83/4,673.23 = 3,113.60/x
3. Step 3: Cross multiply
   3,131.83x = 4,673.23 × 3,113.60
4. Step 4: Simplify right side
   3,131.83x = 14,550,568.93
5. Step 5: Solve for x
   x = 14,550,568.93/3,131.83
6. Step 6: Final answer
   x = 4,646.04