Finding the Fourth Proportional to 8,062.59, 12,090.78 and 3,131.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,062.59 : 12,090.78 = 3,131.58 : x
2. Step 2: Convert to fraction form
   8,062.59/12,090.78 = 3,131.58/x
3. Step 3: Cross multiply
   8,062.59x = 12,090.78 × 3,131.58
4. Step 4: Simplify right side
   8,062.59x = 37,863,301.92
5. Step 5: Solve for x
   x = 37,863,301.92/8,062.59
6. Step 6: Final answer
   x = 4,696.17